CVE-2023-6507

CVSS V2 None CVSS V3 None

Description

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`).

Overview

CVE ID
CVE-2023-6507

Assigner
PSF

Vulnerability Status
PUBLISHED

Published Version
2023-12-08T18:20:49.583Z

Last Modified Date
2024-06-04T17:17:02.629Z

Weakness Enumerations

CWE	URL
CWE-269	http://cwe.mitre.org/data/definitions/269.html

References

Reference URL	Reference Tags
https://github.com/python/cpython/issues/112334	issue-tracking
https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/	vendor-advisory
https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610	patch
https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b	patch
https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06	patch

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2023-6507
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6507

History

Created	Old Value	New Value	Data Type	Notes
2024-06-25 06:33:25				Added to TrackCVE