Vulnerability Monitor

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CVE-2023-6507

An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases. When using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes' groups before starting the new process. There is no issue when the parameter isn't used or when any value is used besides an empty list. This issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).

Published

2023-12-08T19:15:08.440

Last Modified

2024-11-21T08:43:59.623

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.1 (MEDIUM)

Weaknesses

Type: Secondary
CWE-269
Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	python	python	3.12.0	Yes
Application	python	python	3.13.0	Yes
Application	python	python	3.13.0	Yes

References

https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b ([email protected])
https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06 ([email protected])
https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610 ([email protected])
https://github.com/python/cpython/issues/112334 Issue Tracking, Patch ([email protected])
https://mail.python.org/archives/list/[email protected]/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/ Third Party Advisory ([email protected])
https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/python/cpython/issues/112334 Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
https://mail.python.org/archives/list/[email protected]/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)