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GeezerVison is showing github.com — [3.9] gh-97514: Don't use Linux abstract sockets for multiprocessing (GH-98501) by miss-islington · Pull Request #98504 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Oct 20, 2022 •
edited by bedevere-bot
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Linux abstract sockets are insecure as they lack any form of filesystem
permissions so their use allows anyone on the system to inject code into
the process.

This removes the default preference for abstract sockets in
multiprocessing introduced in Python 3.9+ via
#18866 while fixing
#84031.

Explicit use of an abstract socket by a user now generates a
RuntimeWarning. If we choose to keep this warning, it should be
backported to the 3.7 and 3.8 branches.
(cherry picked from commit 49f6106)

Co-authored-by: Gregory P. Smith [email protected]

  • Issue: Linux specific local privilege escalation via the multiprocessing forkserver start method - CVE-2022-42919 #97514

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@gpshead @miss-islington
pythongh-97514: Don't use Linux abstract sockets for multiprocessing (p…
85178d5 
…ythonGH-98501)

Linux abstract sockets are insecure as they lack any form of filesystem
permissions so their use allows anyone on the system to inject code into
the process.

This removes the default preference for abstract sockets in
multiprocessing introduced in Python 3.9+ via
python#18866 while fixing
python#84031.

Explicit use of an abstract socket by a user now generates a
RuntimeWarning.  If we choose to keep this warning, it should be
backported to the 3.7 and 3.8 branches.
(cherry picked from commit 49f6106)

Co-authored-by: Gregory P. Smith <[email protected]>
@miss-islington
miss-islington force-pushed the backport-49f6106-3.9 branch from 32b2d32 to 85178d5 Compare October 20, 2022 23:12
gpshead
gpshead approved these changes Oct 20, 2022
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@bedevere-bot bedevere-bot added the awaiting merge label Oct 20, 2022
@miss-islington

miss-islington commented Oct 20, 2022

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Sorry, I can't merge this PR. Reason: You're not authorized to push to this branch. Visit https://docs.github.com/articles/about-protected-branches/ for more information..
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@gpshead gpshead added type-security A security issue release-blocker labels Oct 20, 2022
@miss-islington

miss-islington commented Oct 20, 2022

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Sorry, I can't merge this PR. Reason: You're not authorized to push to this branch. Visit https://docs.github.com/articles/about-protected-branches/ for more information..
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@miss-islington

miss-islington commented Oct 20, 2022

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Sorry, I can't merge this PR. Reason: You're not authorized to push to this branch. Visit https://docs.github.com/articles/about-protected-branches/ for more information..
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@gpshead gpshead assigned ambv Oct 20, 2022
@gpshead gpshead added the 3.9 (EOL) end of life label Oct 20, 2022
@miss-islington

miss-islington commented Oct 20, 2022

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Sorry, I can't merge this PR. Reason: You're not authorized to push to this branch. Visit https://docs.github.com/articles/about-protected-branches/ for more information..
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@gpshead gpshead mentioned this pull request Oct 20, 2022
gh-97514: Don't use Linux abstract sockets for multiprocessing #98501
Merged
@ambv
ambv merged commit b43496c into python:3.9 Oct 28, 2022
@bedevere-bot bedevere-bot removed the awaiting merge label Oct 28, 2022
@miss-islington
miss-islington deleted the backport-49f6106-3.9 branch October 28, 2022 10:08
@gpshead gpshead mentioned this pull request Nov 10, 2022
Linux specific local privilege escalation via the multiprocessing forkserver start method - CVE-2022-42919 #97514
Closed
3 of 4 tasks
@tshu-w tshu-w mentioned this pull request Nov 14, 2022
Python 3.9 Support SeldonIO/seldon-core#3720
Closed
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3.9 (EOL) end of life release-blocker type-security A security issue

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4 participants

@miss-islington @gpshead @ambv @bedevere-bot
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