Vulnerability-Lookup

GHSA-XH36-8Q3W-G243

Vulnerability from github – Published: 2024-01-21 12:30 – Updated: 2025-11-04 21:31

Details

A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.

Severity

7.0 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-6531"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-01-21T10:15:07Z",
    "severity": "HIGH"
  },
  "details": "A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector\u0027s deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.",
  "id": "GHSA-xh36-8q3w-g243",
  "modified": "2025-11-04T21:31:04Z",
  "published": "2024-01-21T12:30:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6531"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:2394"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-6531"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2253034"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html"
    },
    {
      "type": "WEB",
      "url": "https://lore.kernel.org/all/c716c88321939156909cfa1bd8b0faaf1c804103.1701868795.git.asml.silence@gmail.com"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/176533/Linux-Broken-Unix-GC-Interaction-Use-After-Free.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-6531 (GCVE-0-2023-6531)

Vulnerability from cvelistv5 – Published: 2024-01-21 10:01 – Updated: 2025-11-06 19:47

Title

Kernel: gc's deletion of an skb races with unix_stream_read_generic() leading to uaf

Summary

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

redhat

References

6 references

URL	Tags
https://access.redhat.com/errata/RHSA-2024:2394	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-6531	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2253034	issue-trackingx_refsource_REDHAT
https://lore.kernel.org/all/c716c88321939156909cf…
http://packetstormsecurity.com/files/176533/Linux…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-427.13.1.el9_4 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::nfv cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::realtime cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Date Public

2023-12-06 06:30

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

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-XH36-8Q3W-G243

CVE-2023-6531 (GCVE-0-2023-6531)

Tags

Sightings

Nomenclature