Python 3.9.x before 3.9.16 and 3.10.x before 3.10.9 on Linux…(CVE-2022-42919)

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

Python 3.9.x before 3.9.16 and 3.10.x before 3.10.9 on Linux allows local privilege escalation in a non-default configuration. The Python multiprocessing library, when used with the forkserver start method on Linux, allows pickles to be deserialized from any user in the same machine local network namespace, which in many system configurations means any user on the same machine. Pickles can execute arbitrary code. Thus, this allows for local user privilege escalation to the user that any forkserver process is running as. Setting multiprocessing.util.abstract_sockets_supported to False is a workaround. The forkserver start method for multiprocessing is not the default start method. This issue is Linux specific because only Linux supports abstract namespace sockets. CPython before 3.9 does not make use of Linux abstract namespace sockets by default. Support for users manually specifying an abstract namespace socket was added as a bugfix in 3.7.8 and 3.8.3, but users would need to make specific uncommon API calls in order to do that in CPython before 3.9.

出典: OSV.dev (Open Source Vulnerabilities) NVD OSV

影響パッケージ

Bitnami python-min

[{"type":"SEMVER","events":[{"introduced":"3.7.3"},{"fixed":"3.7.16"},{"introduced":"3.8.3"},{"fixed":"3.8.16"},{"introduced":"3.9.0"},{"fixed":"3.9.16"},{"introduced":"3.10.0"},{"fixed":"3.10.9"}]}]

Bitnami libpython

[{"type":"SEMVER","events":[{"introduced":"3.7.3"},{"fixed":"3.7.16"},{"introduced":"3.8.3"},{"fixed":"3.8.16"},{"introduced":"3.9.0"},{"fixed":"3.9.16"},{"introduced":"3.10.0"},{"fixed":"3.10.9"}]}]

Bitnami python

[{"type":"SEMVER","events":[{"introduced":"3.7.3"},{"fixed":"3.7.16"},{"introduced":"3.8.3"},{"fixed":"3.8.16"},{"introduced":"3.9.0"},{"fixed":"3.9.16"},{"introduced":"3.10.0"},{"fixed":"3.10.9"}]}]

ディストリビューション別の修正状況

各ディストリビューションが公開している、この CVE の修正パッケージ

Alpine Linux ALPINE-CVE-2022-42919 python3 修正版: 3.10.9-r0
Debian DEBIAN-CVE-2022-42919 pypy3

Python 3.9.x before 3.9.16 and 3.10.x before 3.10.9 on Linux allows local privilege escalation in a non-default configuration. The Python multiprocess...

原文の説明

影響パッケージ

ディストリビューション別の修正状況

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