github - ghsa-4wxh-fpjf-c8wf

ghsa-4wxh-fpjf-c8wf

Vulnerability from github

Published

2023-12-08 21:30

Modified

2024-05-08 00:31

Severity ?

6.1 (Medium) - CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Details

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).

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{
  "affected": [],
  "aliases": [
    "CVE-2023-6507"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-12-08T19:15:08Z",
    "severity": "MODERATE"
  },
  "details": "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.\n\nWhen 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\u0027 groups before starting the new process. There is no issue when the parameter isn\u0027t used or when any value is used besides an empty list.\n\nThis issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).\n\n",
  "id": "GHSA-4wxh-fpjf-c8wf",
  "modified": "2024-05-08T00:31:12Z",
  "published": "2023-12-08T21:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6507"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/issues/112334"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/112617"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610"
    },
    {
      "type": "WEB",
      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2023-6507

Vulnerability from cvelistv5

Published

2023-12-08 18:20

Modified

2024-08-02 08:35

Severity ?

6.1 (Medium) - CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Summary

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`).

References

▼	URL	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

Impacted products

Vendor

Product

Version

▼

Python Software Foundation

CPython

Version: 3.12.0
Version: 3.13.0a1

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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