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name: "xxx" # slug: xxx # # CVE can be a single string or a list # cve: xxx # # GitHub issue number # gh: xxx # links: # - xxx # fixed-in: # - '3.x': xxx # - '3.y': xxx # description: | # xxx # xxx # xxx # # There are many optional fields: # # - name: "" # slug: # # CVE can be a single string or a list # cve: # # GitHub issue number # gh: # links: # - # disclosure: "" -- optional, use bpo if missing # reported-at: "" # reported-by: "" # fixed-in: # - '3.x': commit_sha1 # - '3.y': commit_sha1 # affected-versions: # - "x.y" # description: | # # For old issues, "bpo: xxx" is also supposed for links to bugs.python.org. # # Other tag: "ignore-python3: true", used for modules removed from Python 3 - name: "urllib FTP protocol stream injection" slug: urllib-ftp-stream-injection cve: # Bug number at bugs.python.org (bpo) bpo: 30119 links: - http://blog.blindspotsecurity.com/2017/02/advisory-javapython-ftp-injections.html - http://www.openwall.com/lists/oss-security/2017/02/20/1 - https://bugzilla.redhat.com/show_bug.cgi?id=1478916 disclosure: "2017-02-20 (blog post, mail to oss-security)" reported-at: "2016-01-15 (email sent to the PSRT list)" reported-by: "Timothy D. Morgan (Blindspot)" fixed-in: - '2.7': e5eae474c431af2880a68f6329840b9288fc4bc1 - '3.3': a4e774f86224cd8c997deaa4e71312cf1a7b023c - '3.4': 2a5a26c87e82c7d9a348792891feccd1b5e9a769 - '3.5': 19b2890014d3098147d16475c492a47a43893768 - '3.6': 8c2d4cf092c5f0335e7982392a33927579c4d512 - '3.7': 2b1e6e9696cb433c0e0da11145157d54275d119f description: | FTP protocol stream injection via malicious URLs. - name: "bpo-30500: urllib connects to a wrong host" slug: urllib-connects-wrong-host bpo: 30500 reported-at: 2017-03-04 (Orange Tsai on the PSRT list) description: | The urllib module doesn't parse correctly password containing the ``#`` character. fixed-in: - '3.7': 90e01e50ef8a9e6c91f30d965563c378a4ad26de - '3.6': b0fba8874a4bd6bf4773e6efdbd8fa762e9f05bd - '3.5': 4899d847ed3f56b2a712799f896aa1f28540a5c0 - '3.4': cc54c1c0d2d05fe7404ba64c53df4b1352ed2262 - '3.3': 052f9d6860c48c5abcff8e16212e77cf4249d66c - '2.7': d4324baca4c03eb8d55446cd1b74b32ec5633af5 - name: "smtplib TLS stripping" slug: smtplib-tls-stripping cve: CVE-2016-0772 disclosure: 2016-06-11 (commit date) reported-at: 2016-02-01 (Red Hat issue reported) reported-by: Tin (Team Oststrom) links: - http://seclists.org/oss-sec/2016/q2/541 - https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-0772 description: | A vulnerability in smtplib allowing MITM attacker to perform a startTLS stripping attack. smtplib does not seem to raise an exception when the remote end (SMTP server) is capable of negotiating starttls but fails to respond with 220 (ok) to an explicit call of SMTP.starttls(). This may allow a malicious MITM to perform a startTLS stripping attack if the client code does not explicitly check the response code for startTLS. fixed-in: - '2.7': 2e1b7fc998e1744eeb3bb31b131eba0145b88a2f - '3.3': 3625f7fd11679ecb390ffa58ef36d487acc8159b - '3.4': 46b32f307c48bcb999b22eebf65ffe8ed5cca544 - name: "Issue #26657: HTTP server directory traversal" slug: http-server-directory-traversal bpo: 26657 fixed-in: - '2.7': 0cf2cf2b7d726d12a6046441e4067d32c7dd4feb - '3.4': 6f6bc1da8aaae52664e7747e328d26eb59c0e74f - '3.5': d274b3f1f1e2d8811733fb952c9f18d7da3a376a - '3.3': 7b92f9fa47df754b50c64aac84cf1c09693571af description: | Fix directory traversal vulnerability with ``http.server`` and ``SimpleHTTPServer`` on Windows. Regression of Python 3.3.5. Python issue reported at 2016-03-14. - name: "Issue #26556: Expat 2.1.1" slug: expat-2.1.1 cve: CVE-2015-1283 bpo: 26556 links: - https://sourceforge.net/p/expat/bugs/528/ reported-at: "2015-07-24 (Expat issue #528 reported)" reported-by: David Dillard (Expat issue) fixed-in: - '2.7': d244a8f7cb0ec6979ec9fc7acd39e95f5339ad0e - '3.4': 196d7db3956f4c0b03e87b570771b3460a61bab5 - '3.3': ab90986600ba7dea2aa41e5c1773791070725453 description: | Multiple integer overflows have been discovered in Expat, an XML parsing C library, which may result in denial of service or the execution of arbitrary code if a malformed XML file is processed. Update bundled copy of Expat library to version 2.1.1 to get CVE-2015-1283 fixes. - name: "HTTP header injection" slug: http-header-injection cve: CVE-2016-5699 bpo: 22928 links: - http://blog.blindspotsecurity.com/2016/06/advisory-http-header-injection-in.html redhat-impact: "Moderate" fixed-in: - '2.7': 59bdf6392de446de8a19bfa37cee52981612830e - '3.4': a112a8ae47813f75aa8ad27ee8c42a7c2e937d13 - '3.5': b669bfc2bed1f5487ac2762bff53b55f6155bb60 - '3.3': 8e88f6b5e2a35ee458c161aa3f2b7f1f17fb45d1 description: | HTTP header injection in ``urllib``, ``urrlib2``, ``httplib`` and ``http.client`` modules. CRLF injection vulnerability in the ``HTTPConnection.putheader()`` function in ``urllib2`` and ``urllib`` in CPython before 2.7.10 and 3.x before 3.4.4 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in a URL. Reported again in January 2016 by Timothy D. Morgan (Blindspot Security), with a full disclosed at 2016-06-15. - name: "Hash DoS" slug: hash-dos cve: CVE-2012-1150 disclosure: 2011-12-28 (CCC talk) reported-by: Alexander “alech” Klink and Julian “zeri” Wälde bpo: 13703 links: - https://events.ccc.de/congress/2011/Fahrplan/events/4680.en.html - http://www.ocert.org/advisories/ocert-2011-003.html fixed-in: - '2.6': 1e13eb084f72d5993cbb726e45b36bdb69c83a24 - '2.7': 2daf6ae2495c862adf8bc717bfe9964081ea0b10 description: | Hash collision denial of service. Python 2.7 and older and Python 3.2 and older require the ``-R`` command line option to enable the enable hash function randomization. Randomization is enabled by default since Python 3.3 (the ``-R`` option is ignored). "Effective Denial of Service attacks against web application platforms" talk at the CCC: 2011-12-28 See also the `PEP 456: Secure and interchangeable hash algorithm <https://www.python.org/dev/peps/pep-0456/>`_: Python 3.4 switched to `SipHash <https://131002.net/siphash/>`_. * Ruby: CRuby 1.9 fixed the vulnerability in 2008 with randomized hash function; JRuby has also been fixed. * Perl: Perl 5.8.1 fixed the vulnerability in 2003 using a random "PERL_HASH_SEED". - name: "zipimporter overflow" slug: zipimporter-overflow cve: CVE-2016-5636 bpo: 26171 fixed-in: - '2.7': 64ea192b73e39e877d8b39ce6584fa580eb0e9b4 - '3.3': d751040b1a4e35fd3b01fc919cd8f9374ed714fd - '3.4': c4032da2012d75c6c358f74d8bf9ee98a7fe8ecf description: | Heap overflow in ``zipimporter`` module. - name: "smtplib unlimited read" slug: smtplib-unlimited-read cve: CVE-2013-1752 bpo: 16042 links: - https://access.redhat.com/security/cve/cve-2013-1752 redhat-impact: "Moderate" fixed-in: - '2.7': dabfc56b57f5086eb5522d8e6cd7670c62d2482d - '3.2': 210ee47e3340d8e689d8cce584e7c918d368f16b description: | The smtplib module doesn't limit the amount of read data in its call to readline(). An erroneous or malicious SMTP server can trick the smtplib module to consume large amounts of memory. - name: "httplib unlimited read" slug: httplib-unlimited-read cve: CVE-2013-1752 bpo: 6791 redhat-impact: "Moderate" fixed-in: - '2.7': d7b6ac66c1b81d13f2efa8d9ebba69e17c158c0a - '3.2': ff1bbba92aad261df1ebd8fd8cc189c104e113b0 - '3.3': 5466bf1c94d38e75bc053b0cfc163e2f948fe345 description: | Limit the HTTP header readline. - name: "ftplib unlimited read" slug: ftplib-unlimited-read cve: CVE-2013-1752 bpo: 16038 links: - https://access.redhat.com/security/cve/cve-2013-1752 redhat-impact: "Moderate" fixed-in: - '2.7': 2585e1e48abb3013abeb8a1fe9dccb5f79ac4091 - '3.2': c9cb18d3f7e5bf03220c213183ff0caa75905bdd - '3.3': c30b178cbc92e62c22527cd7e1af2f02723ba679 description: | ftplib: unlimited read from connection. - name: "nntplib unlimited read" slug: nntplib-unlimited-read cve: CVE-2013-1752 bpo: 16040 links: - https://access.redhat.com/security/cve/cve-2013-1752 redhat-impact: "Moderate" fixed-in: - '2.7': 42faa55124abcbb132c57745dec9e0489ac74406 - '3.2': b3ac84322fe6dd542aa755779cdbc155edca8064 description: | Unlimited read from connection in nntplib. - name: "poplib unlimited read" slug: poplib-unlimited-read cve: CVE-2013-1752 bpo: 16041 links: - https://access.redhat.com/security/cve/cve-2013-1752 redhat-impact: "Moderate" fixed-in: - '2.7': faad6bbea6c86e30c770eb0a3648e2cd52b2e55e - '3.2': eaca8616ab0e219ebb5cf37d495f4bf336ec0f5e description: | poplib: unlimited read from connection. - name: "xmlrpc gzip unlimited read" slug: xmlrpc-gzip-unlimited-read cve: CVE-2013-1753 bpo: 16043 links: - https://access.redhat.com/security/cve/cve-2013-1753 redhat-impact: "Moderate" fixed-in: - '2.7': 9e8f523c5b1c354097753084054eadf14d33238d - '3.2': 4e9cefaf86035f8014e09049328d197b6506532f description: | Add a default limit for the amount of data ``xmlrpclib.gzip_decode()`` will return. - name: "JSONDecoder.raw_decode" slug: jsondecoder-raw_decode cve: CVE-2014-4616 bpo: 21529 disclosure: "2014-04-13 (commit)" redhat-impact: "Moderate" links: - https://access.redhat.com/security/cve/cve-2014-4616 fixed-in: - '2.7': 6c939cb6f6dfbd273609577b0022542d31ae2802 - '3.2': 99b5afab74428e5ddfd877bdf3aa8a8c479696b1 reported-by: Guido Vranken description: | Fix arbitrary memory access in ``JSONDecoder.raw_decode()`` with a negative second parameter. Note: The issue #21529 was created at 2014-05-19, after the commit. - name: gettext.c2py() slug: gettext-c2py bpo: 28563 links: - https://www.xil.se/post/is-eval-safe-yet-rspkt/ fixed-in: - '2.7': a8760275bd59fb8d8be1f1bf05313fed31c08321 - '3.3': 07bcf05fcf3fd1d4001e8e3489162e6d67638285 description: | Arbitrary code execution in ``gettext.c2py()``. - name: "HTTPoxy attack" slug: httpoxy cve: CVE-2016-1000110 bpo: 27568 links: - https://httpoxy.org/ - https://access.redhat.com/security/cve/cve-2016-1000110 reported-by: Scott Geary (HTTPoxy) fixed-in: - '2.7': 75d7b615ba70fc5759d16dee95bbd8f0474d8a9c - '3.3': 4cbb23f8f278fd1f71dcd5968aa0b3f0b4f3bd5d description: | It was discovered that the Python ``CGIHandler`` class did not properly protect against the ``HTTP_PROXY`` variable name clash in a CGI context. A remote attacker could possibly use this flaw to redirect HTTP requests performed by a Python CGI script to an attacker-controlled proxy via a malicious HTTP request. Ignore the ``HTTP_PROXY`` variable when ``REQUEST_METHOD`` environment is set, which indicates that the script is in CGI mode. CVSS score: 5.0 (CVSS v3). - name: "socket.recvfrom_into() overflow" slug: socket-recvfrom_into-overflow cve: CVE-2014-1912 bpo: 20246 fixed-in: - '2.7': 28cf368c1baba3db1f01010e921f63017af74c8f - '3.3': fbf648ebba32bbc5aa571a4b09e2062a65fd2492 description: | ``socket.recvfrom_into()`` fails to check that the supplied buffer object is big enough for the requested read and so will happily write off the end. - name: "CGI directory traversal (URL parsing)" slug: cgi-directory-traversal-url-parsing bpo: 19435 fixed-in: - '2.7': 1ef959ac3ddc4d96dfa1a613db5cb206cdaeb662 - '3.2': 04e9de40f380b2695f955d68f2721d57cecbf858 description: | An error in separating the path and filename of the CGI script to run in ``http.server.CGIHTTPRequestHandler`` allows running arbitrary executables in the directory under which the server was started. - name: "ssl.match_hostname() wildcard DoS" slug: ssl-match_hostname-wildcard-dos cve: CVE-2013-2099 bpo: 17980 affected-versions: # ssl.match_hostname() was added to Python 3.2 # The function was backported to 2.7.9 with the IDNA fix # (commit daeb925cc88cc8fed2030166ade641de28edb396). - '3.2' fixed-in: - '3.2': 86d53caddad11808ca332ab93ec35508b602a0dd - '3.3': 636f93c63ba286249c1207e3a903f8429efb2041 description: | If the name in the certificate contains many ``*`` characters (wildcard), matching the compiled regular expression against the host name can take a very long time. Certificate validation happens before host name checking, so I think this is a minor issue only because it can only be triggered in cooperation with a CA (which seems unlikely). - name: "Vulnerability in the utf-16 decoder after error handling" slug: utf-16-decoder-after-error-handling cve: CVE-2012-2135 bpo: 14579 disclosure: "2012-04-14" fixed-in: - '2.7': 715a63b78349952ccc0fb3dd3139e2d822006d35 - '3.3': b4bbee25b1e3f4bccac222f806b3138fb72439d6 description: | Vulnerability in the UTF-16 decoder after error handling. - name: "XML-RPC DoS" slug: xmlrpc-dos cve: CVE-2012-0845 bpo: 14001 fixed-in: - '2.6': 66f3cc6f8de83c447d937160e4a1630c4482b5f5 - '3.2': ec1712a1662282c909b4cd4cc0c7486646bc9246 description: | A denial of service flaw was found in the way Simple XML-RPC Server module of Python processed client connections, that were closed prior the complete request body has been received. A remote attacker could use this flaw to cause Python Simple XML-RPC based server process to consume excessive amount of CPU. - name: "ssl: NULL in subjectAltNames" slug: ssl-null-subjectaltnames cve: CVE-2013-4238 bpo: 18709 disclosure: "2013-06-27 (Ruby issue)" reported-by: Ryan Sleevi of the Google Chrome Security Team fixed-in: - '2.7': 82f88283171933127f20f866a7f98694b29cca56 - '3.2': ec3c103520a5061e657581b388e2b8ba6f74602a - '3.3': 824f7f366d1b54d2d3100c3130c04cf1dfb4b47c description: | SSL module fails to handle NULL bytes inside subjectAltNames general names. It's related to `Ruby's CVE-2013-4073 <http://www.ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073/>`_. Issue #18709 reported by Christian Heimes at 2013-08-12. - name: "ssl CBC IV attack" slug: ssl-cbc-iv-attack cve: CVE-2011-3389 bpo: 13885 reported-by: Apple security team fixed-in: - '2.6': d358e0554bc520768041652676ec8e6076f221a9 - '2.7': f2bf8a6ac51530e14d798a03c8e950dd934d85cd description: | The ssl module would always disable the CBC IV attack countermeasure. Disable OpenSSL ``SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS`` option. - name: "urllib redirect" slug: urllib-redirect cve: CVE-2011-1521 bpo: 11662 reported-by: email received on the Python security list fixed-in: - '2.5': 60a4a90c8dd2972eb4bb977e70835be9593cbbac - '3.1': a119df91f33724f64e6bc1ecb484eeaa30ace014 description: | The Python urllib and urllib2 modules are typically used to fetch web pages but by default also contains handlers for ``ftp://`` and ``file://`` URL schemes. Now unfortunately it appears that it is possible for a web server to redirect (HTTP 302) a urllib request to any of the supported schemes. - name: "Sweet32 attack (DES, 3DES)" slug: sweet32 cve: CVE-2016-2183 bpo: 27850 links: - https://sweet32.info/ - https://www.openssl.org/blog/blog/2016/08/24/sweet32/ disclosure: "2016-08-24 (end of the Sweet32 embargo)" reported-by: Karthik Bhargavan and Gaetan Leurent (Sweet32) affected-versions: # ssl._DEFAULT_CIPHERS doesn't include 3DES in 3.3 but is quite generic - '2.7' - '3.4' fixed-in: - '2.7': d988f429fe43808345812ef63dfa8da170c61871 - '3.5': 03d13c0cbfe912eb0f9b9a02987b9e569f25fe19 - '3.4': fa53dbdec818b0f2a0e22ca12a49d83ec948fc91 description: | Remove 3DES from ssl default cipher list. Sweet32 vulnerability found by Karthik Bhargavan and Gaetan Leurent from the `INRIA <https://www.inria.fr/>`_. - name: "Validate TLS certificate" slug: validate-tls-certificate cve: CVE-2014-9365 bpo: 22417 links: - "`PEP 476: Enabling certificate verification by default for stdlib http clients <https://www.python.org/dev/peps/pep-0476/>`_" disclosure: "2014-08-28 (PEP 476 created)" reported-by: Alex Gaynor (PEP 476 author) fixed-in: - '2.7': e3e7d40514e5dd0c3847682a719577efcfae1d8f - '3.4': 4ffb0752710f0c0720d4f2af0c4b7ce1ebb9d2bd # WONTFIX: 3.3, backward incompatible change, too late for 3.3 description: | The HTTP clients in the (1) httplib, (2) urllib, (3) urllib2, and (4) xmlrpclib libraries in CPython (aka Python) 2.x before 2.7.9 and 3.x before 3.4.3, when accessing an HTTPS URL, do not (a) check the certificate against a trust store or verify that the server hostname matches a domain name in the subject's (b) Common Name or (c) subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate. See also the `PEP 476 -- Enabling certificate verification by default for stdlib http clients <https://www.python.org/dev/peps/pep-0476/>`_ and `PEP 466: Network Security Enhancements for Python 2.7.x <https://www.python.org/dev/peps/pep-0466/>`_. - name: "buffer() integer overflows" slug: buffer-integer-overflows cve: CVE-2014-7185 bpo: 21831 reported-by: Chris Foster (on the Python security list) affected-versions: # buffer() type was removed from Python 3 - '2.0' fixed-in: - '2.7': 550b945fd66f1c6837a53fbf29dc8e524297b8c3 description: | Integer overflow in ``bufferobject.c`` in Python before 2.7.8 allows context-dependent attackers to obtain sensitive information from process memory via a large size and offset in a ``buffer`` type. - name: "os.makedirs() not thread-safe" slug: os-makedirs-not-thread-safe cve: CVE-2014-2667 bpo: 21082 affected-versions: # os.makedirs() exist_ok parameter added to Python 3.2 - '3.2' fixed-in: - '3.2': ee5f1c13d1ea21c628068fdf142823177f5526c2 description: | ``os.makedirs(exist_ok=True)`` is not thread-safe: umask is set temporary to ``0``, serious security problem. The fix removes the directory mode check from ``os.makedirs()``. The ``exist_ok`` parameter was added to Python 3.2.0 (commit 5a22b651173f142a600625a036fcf36484ade237). - name: "ssl.match_hostname() IDNA issue" slug: ssl-match_hostname-idna cve: CVE-2013-7440 bpo: 17997 links: - https://tools.ietf.org/html/rfc6125 affected-versions: # ssl.match_hostname() was added to Python 3.2 # The function was backported to 2.7.9 with the IDNA fix # (commit daeb925cc88cc8fed2030166ade641de28edb396). - '3.2' fixed-in: - '3.3': 72c98d3a761457a4f2b8054458b19f051dfb5886 description: | ``ssl.match_hostname()``: sub string wildcard should not match IDNA prefix. Change behavior of ``ssl.match_hostname()`` to follow RFC 6125, for security reasons. It now doesn't match multiple wildcards nor wildcards inside IDN fragments. Note that this function was only added to Python 2.7 in a backport to 2.7.9, and was added in its fixed form, so no releases of Python 2.7 have this vulnerability. - name: "zipfile DoS using invalid file size" slug: zipfile-file-size-dos cve: CVE-2013-7338 bpo: 20078 affected-versions: # ZipExtFile._read2() was added to Python 3.3 - '3.3' fixed-in: - '3.3': 5ce3f10aeea711bb912e948fa5d9f63736df1327 description: | Python before 3.3.4 RC1 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a file size value larger than the size of the zip file to the functions: * ``ZipExtFile.read()`` * ``ZipExtFile.readlines()`` * ``ZipFile.extract()`` * ``ZipFile.extractall()`` Reading malformed zipfiles no longer hangs with 100% CPU consumption. Python 2.7 is not affected. - name: "Hash function not randomized properly" slug: hash-function-not-randomized-properly cve: CVE-2013-7040 bpo: 14621 fixed-in: - '3.4': 985ecdcfc29adfc36ce2339acf03f819ad414869 description: | The hash function is not randomized properly. Python 3.4 now used SipHash (PEP 456). Python 3.3 and Python 2.7 are still affected. - name: "pypirc created insecurely" slug: pypirc-created-insecurely cve: CVE-2011-4944 bpo: 13512 fixed-in: - '2.6': e5567ccc863cadb68f5e57a2760e021e0d3807cf - '3.3': d61926e6bef6c4d8105a2848362377dce91d7fc8 description: | Python 2.6 through 3.2 creates ``~/.pypirc`` configuration file with world-readable permissions before changing them after data has been written, which introduces a race condition that allows local users to obtain a username and password by reading this file. - name: "SimpleHTTPServer UTF-7" slug: simplehttpserver-utf-7 cve: CVE-2011-4940 bpo: 11442 reported-by: email received on the Python security list fixed-in: - '2.5': 3853586e0caa0d5c4342ac8bd7e78cb5766fa8cc description: | The ``list_directory()`` function in ``Lib/SimpleHTTPServer.py`` in ``SimpleHTTPServer`` in Python before 2.5.6c1, 2.6.x before 2.6.7 rc2, and 2.7.x before 2.7.2 does not place a charset parameter in the Content-Type HTTP header, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks against Internet Explorer 7 via UTF-7 encoding. - name: "CGI directory traversal (is_cgi() function)" slug: cgi-directory-traversal-is_cgi cve: CVE-2011-1015 bpo: 2254 fixed-in: - '2.7': 923ba361d8f757f0656cfd216525aca4848e02aa description: | The ``is_cgi()`` method in ``CGIHTTPServer.py`` in the ``CGIHTTPServer`` module in Python 2.5, 2.6, and 3.0 allows remote attackers to read script source code via an HTTP GET request that lacks a ``/`` (slash) character at the beginning of the URI. - name: "smtpd accept bug and race condition" slug: smtpd-accept-bug-and-race-condition cve: - CVE-2010-3492 - CVE-2010-3493 bpo: 6706 fixed-in: - '2.7': 19e9fefc660d623ce7c31fb008cde1157ae12aba - '3.1': 5ea3d0f95b51009fa1c3409e7dd1c12006427ccc - '3.2': 977c707b425ee753d54f3e9010f07ec77ef61274 description: | CVE-2010-3492: The ``asyncore`` module in Python before 3.2 does not properly handle unsuccessful calls to the accept function, and does not have accompanying documentation describing how daemon applications should handle unsuccessful calls to the accept function, which makes it easier for remote attackers to conduct denial of service attacks that terminate these applications via network connections. CVE-2010-3493: Multiple race conditions in ``smtpd.py`` in the ``smtpd`` module in Python 2.6, 2.7, 3.1, and 3.2 alpha allow remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None, an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, or the getpeername function having an ENOTCONN error, a related issue to CVE-2010-3492. - name: "audioop input validation" slug: audioop-input-validation cve: CVE-2010-2089 bpo: 7673 fixed-in: - '2.6': e9123efa21a16584758b5ce7da93d3966cf0cd81 - '3.1': 8e42fb7ada3198e66d3f060c5c87c52465a86e36 - '3.2': bc5c54bca24fdb1fcf7fa055831ec997a65f3ce8 description: | The ``audioop`` module in Python 2.7 and 3.2 does not verify the relationships between size arguments and byte string lengths, which allows context-dependent attackers to cause a denial of service (memory corruption and application crash) via crafted arguments, as demonstrated by a call to ``audioop.reverse()`` with a one-byte string, a different vulnerability than CVE-2010-1634. - name: "audioop integer overflows" slug: audioop-integer-overflows cve: CVE-2010-1634 bpo: 8674 fixed-in: - '2.6': 7ceb497ae6f554274399bd9916ea5a21de443208 - '2.7': 11bb2cdc6aa8db142a87de281b83293d500847b2 - '3.1': ee289e6cd5c009e641ee970cfc67996d8f871221 - '3.2': 393b97a7b61583f3e0401f385da8b741ef1684d6 description: | Multiple integer overflows in ``audioop.c`` in the ``audioop`` module in Python 2.6, 2.7, 3.1, and 3.2 allow context-dependent attackers to cause a denial of service (application crash) via a large fragment, as demonstrated by a call to audioop.lin2lin with a long string in the first argument, leading to a buffer overflow. NOTE: this vulnerability exists because of an incorrect fix for CVE-2008-3143. - name: "rgbimg and imageop overflows" slug: rgbimg-imageop-overflows cve: - CVE-2007-4965 - CVE-2009-4134 - CVE-2010-1449 - CVE-2010-1450 bpo: 1179 links: - http://seclists.org/fulldisclosure/2007/Sep/279 - http://bugs.python.org/issue8678 - https://bugzilla.redhat.com/show_bug.cgi?id=541698 disclosure: "2007-09-16 (full-disclosure email)" reported-by: Slythers Bro (on the full-disclosure mailing list) # imageop module was removed in Python 3 ignore-python3: true affected-versions: # rgbimg and imageop modules were removed in Python 3 - '2.0' fixed-in: - '2.5': 4df1b6d478020ac51c84467f47e42083f53adbad - '2.6': 93ebfb154456daa841aa223bd296422787b3074c description: | Multiple integer overflows in the ``imageop`` module in Python 2.5.1 and earlier allow context-dependent attackers to cause a denial of service (application crash) and possibly obtain sensitive information (memory contents) via crafted arguments to (1) the ``tovideo()`` method, and unspecified other vectors related to (2) ``imageop.c``, (3) ``rbgimgmodule.c``, and other files, which trigger heap-based buffer overflows. Reported again by Marc Schoenefeld in the Red Hat bugzilla at 2009-11-26. - name: "Multiple integer overflows (Google)" slug: multiple-integer-overflows-google cve: CVE-2008-3143 bpo: 2620 fixed-in: - '2.5': 83ac0144fa3041556aa4f3952ebd979e0189a19c - '2.6': 0470bab69783c13447cb634fa403ef1067fe56d1 - '3.1': d492ad80c872d264ed46bec71e31a00f174ac819 description: | Multiple integer overflows in Python before 2.5.2 might allow context-dependent attackers to have an unknown impact via vectors related to: * ``Include/pymem.h`` * ``Modules/``: - ``_csv.c`` - ``_struct.c`` - ``arraymodule.c`` - ``audioop.c`` - ``binascii.c`` - ``cPickle.c`` - ``cStringIO.c`` - ``datetimemodule.c`` - ``md5.c`` - ``rgbimgmodule.c`` - ``stropmodule.c`` * ``Modules/cjkcodecs/multibytecodec.c`` * ``Objects/``: - ``bufferobject.c`` - ``listobject.c`` - ``obmalloc.c`` * ``Parser/node.c`` * ``Python/``: - ``asdl.c`` - ``ast.c`` - ``bltinmodule.c`` - ``compile`` as addressed by "checks for integer overflows, contributed by Google." - name: "expandtab() integer overflow" slug: expandtab-integer-overflow cve: CVE-2008-5031 links: - http://scary.beasts.org/security/CESA-2008-008.html disclosure: "2008-03-11 (commit date)" reported-by: Chris Evans fixed-in: - '2.5': 44a93e54f4b0f90634d16d53c437fabb6946ea9d - '2.6': 5bdff60617e6fc1d2e387a0b165cb23b82d7dae6 - '3.0': dd15f6c315f20c1a9a540dd757cd63e27dbe9f3c description: | Multiple integer overflows in Python 2.2.3 through 2.5.1, and 2.6, allow context-dependent attackers to have an unknown impact via a large integer value in the tabsize argument to the expandtabs method, as implemented by: * the ``string_expandtabs()`` function in ``Objects/stringobject.c`` * the ``unicode_expandtabs()`` function in ``Objects/unicodeobject.c`` NOTE: this vulnerability reportedly exists because of an incomplete fix for CVE-2008-2315. - name: "Multiple integer overflows (Apple)" slug: multiple-integer-overflows-apple cve: - CVE-2008-1679 - CVE-2008-1721 - CVE-2008-1887 - CVE-2008-2315 - CVE-2008-2316 - CVE-2008-3142 - CVE-2008-3144 - CVE-2008-4864 links: - https://lists.apple.com/archives/security-announce/2009/Feb/msg00000.html disclosure: "2008-07-31 (commit)" reported-by: Apple fixed-in: - '2.6': e7d8be80ba634fa15ece6f503c33592e0d333361 - '2.7': 3ce5d9207e66d61d4b0502cf47ed2d2bcdd2212f description: | Security patches from Apple: prevent integer overflows when allocating memory. CVE-ID: * CVE-2008-1679 (``imageop``) * CVE-2008-1721 (``zlib``) * CVE-2008-1887 (``PyString_FromStringAndSize()``) * CVE-2008-2315 * CVE-2008-2316 (``hashlib``) * CVE-2008-3142 (``unicode_resize()``, ``PyMem_RESIZE()``) * CVE-2008-3144 (``PyOS_vsnprintf()``) * CVE-2008-4864 (``imageop``) - name: "Expat 2.2 (Expat bug #537)" slug: expat-2.2 cve: - CVE-2016-0718 - CVE-2016-4472 # Bug number at bugs.python.org (bpo) bpo: 29591 links: - https://sourceforge.net/p/expat/bugs/537/ - https://bugs.python.org/issue30610 reported-by: "2016-05-27 (expat bug #537 reported)" fixed-in: - '3.7': 23ec4b57e1359f9c539b8defc317542173ae087e - '3.6': 86b95370c45dedb8a56c9894372a43681de47a73 - '3.5': 8c797ed8a0fea5e3162b9415f13e270d4d5d9549 - '3.4': 71572bbe82aa0836c036d44d41c8269ba6a321be - '3.3': ab90986600ba7dea2aa41e5c1773791070725453 - '2.7': 0e4571a68a7f48e8469ef05b04ba3463d3fd82c0 description: | The Expat XML parser mishandles certain kinds of malformed input documents, resulting in buffer overflows during processing and error reporting. The overflows can manifest as a segmentation fault or as memory corruption during a parse operation. The bugs allow for a denial of service attack in many applications by an unauthenticated attacker, and could conceivably result in remote code execution. - name: "Expat 2.2.1" slug: expat-2.2.1 cve: - CVE-2017-9233 - CVE-2016-9063 - CVE-2016-0718 - CVE-2012-0876 bpo: 30694 links: - https://libexpat.github.io/doc/cve-2017-9233/ - https://github.com/libexpat/libexpat/blob/R_2_2_1/expat/Changes disclosure: "2017-06-17 (Expat 2.2.1 release)" fixed-in: - '3.7': 5ff7132313eb651107b179d20218dfe5d4e47f13 - '3.6': ea1ab803ddc14ab02ffed50ecc5089897f259623 - '3.5': 91d171be45942d37a973b0675521b5159a96be31 - '3.4': 71572bbe82aa0836c036d44d41c8269ba6a321be - '3.3': ab90986600ba7dea2aa41e5c1773791070725453 - '2.7': 2ada64d2a073f85f135461833952dbe8d656810d description: | Upgrade expat copy from 2.2.0 to 2.2.1 to get fixes of multiple security vulnerabilities including: * CVE-2017-9233 (External entity infinite loop DoS), * CVE-2016-9063 (Integer overflow, re-fix), * CVE-2016-0718 (Fix regression bugs from 2.2.0’s fix to CVE-2016-0718) * CVE-2012-0876 (Counter hash flooding with SipHash). Note: the CVE-2016-5300 (Use os-specific entropy sources like getrandom) doesn’t impact Python, since Python already gets entropy from the OS to set the expat secret using ``XML_SetHashSalt()``. - name: "Environment variables injection in subprocess on Windows" slug: env-var-injection-subprocess-windows bpo: 30730 fixed-in: - '3.7': d174d24a5d37d1516b885dc7c82f71ecd5930700 - '3.6': a9b16cff35811f88cdfeb4f50758140dfff36ebc - '3.5': a7c0264735f46afab13771be4218d8eab0d7dc91 - '3.4': fe82c46327effc124ff166e1fa1e611579e1176b - '3.3': e46f1c19642ea1882f427d8246987ba49351a97d - '2.7': 9dda2caca8edc7ff1285f6b0d1c5279b51854b7d description: | On Windows, prevent passing invalid environment variables and command arguments to subprocess.Popen. It is possible to inject an environment variable in subprocess on Windows if a user data is passed to a subprocess via environment variable. Check for invalid environment (variable names containing '=') and command arguments (containing '\0'). - name: "Zlib 1.2.11" slug: zlib-1.2.11 cve: - CVE-2016-9840 - CVE-2016-9841 - CVE-2016-9842 - CVE-2016-9843 bpo: 29169 reported-at: "2017-01-02 (zlib 1.2.10 released)" fixed-in: - '2.7': 80b24a9354c60f6b800d462c941c6d4cde3cf783 - '3.4': d0e61bded5256e775e470e2c0da22367a1a81970 - '3.5': 34e7e2ecb1741850190e78f42875480693d3537b # Python 3.3 uses zlib 1.2.5 and is not going to be fixed: # https://github.com/python/cpython/pull/3108 description: | These are the changes updating zlib from 1.2.8 to 1.2.10. It is only used when building without a system zlib. The new release includes fixes for security issues CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843. Note: Only Windows and macOS are affected by this issue. Linux packages use the system zlib. - name: "Expat 2.2.3" slug: expat-2.2.3 bpo: 30947 fixed-in: - '2.7': ec4ab09b7c0b5070bdb27351f979cbecc4636245 - '3.3': 297516ea509c72d8ebed3a9b3ce200f023aca0b7 # expat 2.2.1 to 2.2.4 - '3.4': 86a713cb0c110b6798ca7f9e630fc511ee0a4028 - '3.5': f2492bb6aae061aea47e21fc7e56b7ab9bfdf543 - '3.6': 83e37e16f3065086d721d4e62a3788e01db3431c - '3.7': 93d0cb58b4da2a88c56f472c6c19491cc7a390df description: | Expat 2.2.2 was released with multiple security fixes: * #43: Protect against compilation without any source of high quality entropy enabled, e.g. with CMake build system * #60: Windows with _UNICODE: Unintended use of LoadLibraryW with a non-wide string resulted in failure to load advapi32.dll and degradation in quality of used entropy when compiled with _UNICODE for Windows; you can launch existing binaries with EXPAT_ENTROPY_DEBUG=1 in the environment to inspect the quality of entropy used during runtime * [MOX-006]: Fix non-NULL parser parameter validation in XML_Parse; resulted in NULL dereference, previously Expat 2.2.3 contains an additional security fix: #82: CVE-2017-11742 -- Windows: Fix DLL hijacking vulnerability using Steve Holme's LoadLibrary wrapper for/of cURL - name: "PyString_DecodeEscape integer overflow" slug: pystring_decodeescape-integer-overflow cve: CVE-2017-1000158 bpo: 30657 fixed-in: - '2.7': c3c9db89273fabc62ea1b48389d9a3000c1c03ae - '3.4': 6c004b40f9d51872d848981ef1a18bb08c2dfc42 - '3.5': fd8614c5c5466a14a945db5b059c10c0fb8f76d9 affected-versions: # <2.7 and <3.4 is likely impacted as well - '2.7' - '3.4' - '3.5' description: | Check & prevent integer overflow in PyString_DecodeEscape. You need to compile a 1 GiB Python file on 32-bit system for reproducing it. It is very unlikely that this can happen by accident, and it is hard to used it in security attack. If you can make the attacked program compiling a 1 GiB Python file, you perhaps have easier ways to make a harm. - name: "Buffer overflow vulnerability in os.symlink on Windows" slug: buffer-overflow-os-symlink-windows cve: CVE-2018-1000117 bpo: 33001 links: - https://mail.python.org/mm3/archives/list/[email protected]/thread/PVSURQ2YCNZODILA3QE7ZF3GCD25EVVT/ reported-at: "2018-02-27 (email to the PSRT)" reported-by: "Alexey Izbyshev" affected-versions: # os.symlink() is not available on Windows in Python 2.7 - "3.2" fixed-in: - '3.8': 6921e73e33edc3c61bc2d78ed558eaa22a89a564 - '3.7': 96fdbacb7797a564249fd59ccf86ec153c4bb095 - '3.6': baa45079466eda1f5636a6d13f3a60c2c00fdcd3 - '3.4': 77c02cdce2d7b8360771be35b7676a4977e070c1 - '3.5': f381cfe07d15d52f27de771a62a8167668f0dd51 description: | On February 27th, 2018, the Python Security Response team was notified of a buffer overflow issue in the ``os.symlink()`` method on Windows. The |
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