github - ghsa-ffqx-hmw2-p5jv

GHSA-FFQX-HMW2-P5JV

Vulnerability from github – Published: 2024-03-06 09:30 – Updated: 2025-02-14 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

sysctl: Fix out of bounds access for empty sysctl registers

When registering tables to the sysctl subsystem there is a check to see if header is a permanently empty directory (used for mounts). This check evaluates the first element of the ctl_table. This results in an out of bounds evaluation when registering empty directories.

The function register_sysctl_mount_point now passes a ctl_table of size 1 instead of size 0. It now relies solely on the type to identify a permanently empty register.

Make sure that the ctl_table has at least one element before testing for permanent emptiness.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "affected": [],
  "aliases": [
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  "id": "GHSA-ffqx-hmw2-p5jv",
  "modified": "2025-02-14T18:30:45Z",
  "published": "2024-03-06T09:30:28Z",
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}

CVE-2023-52596 (GCVE-0-2023-52596)

Vulnerability from cvelistv5 – Published: 2024-03-06 06:45 – Updated: 2025-05-04 07:39

Summary

In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix out of bounds access for empty sysctl registers When registering tables to the sysctl subsystem there is a check to see if header is a permanently empty directory (used for mounts). This check evaluates the first element of the ctl_table. This results in an out of bounds evaluation when registering empty directories. The function register_sysctl_mount_point now passes a ctl_table of size 1 instead of size 0. It now relies solely on the type to identify a permanently empty register. Make sure that the ctl_table has at least one element before testing for permanent emptiness.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/15893975e9e382f82…
	https://git.kernel.org/stable/c/2ae7081bc10123b18…
	https://git.kernel.org/stable/c/315552310c7de92ba…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 15893975e9e382f8294ea8d926f08dc2d8d39ede (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2ae7081bc10123b187e36a4f3a8e53768de31489 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 315552310c7de92baea4e570967066569937a843 (git)

Linux

Unaffected: 6.6.16 , ≤ 6.6.* (semver)
Unaffected: 6.7.4 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-FFQX-HMW2-P5JV

CVE-2023-52596 (GCVE-0-2023-52596)

Tags

Sightings

Nomenclature