github - ghsa-x53w-73fx-jmfj

GHSA-X53W-73FX-JMFJ

Vulnerability from github – Published: 2024-09-04 21:30 – Updated: 2025-11-04 00:31

Details

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

ipv6: fix possible UAF in ip6_finish_output2()

If skb_expand_head() returns NULL, skb has been freed and associated dst/idev could also have been freed.

We need to hold rcu_read_lock() to make sure the dst and associated idev are alive.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-44986"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-04T20:15:07Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fix possible UAF in ip6_finish_output2()\n\nIf skb_expand_head() returns NULL, skb has been freed\nand associated dst/idev could also have been freed.\n\nWe need to hold rcu_read_lock() to make sure the dst and\nassociated idev are alive.",
  "id": "GHSA-x53w-73fx-jmfj",
  "modified": "2025-11-04T00:31:22Z",
  "published": "2024-09-04T21:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-44986"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3574d28caf9a09756ae87ad1ea096c6f47b6101e"
    },
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      "url": "https://git.kernel.org/stable/c/56efc253196751ece1fc535a5b582be127b0578a"
    },
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      "url": "https://git.kernel.org/stable/c/6ab6bf731354a6fdbaa617d1ec194960db61cf3b"
    },
    {
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      "url": "https://git.kernel.org/stable/c/da273b377ae0d9bd255281ed3c2adb228321687b"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e891b36de161fcd96f12ff83667473e5067b9037"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
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  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
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}

CVE-2024-44986 (GCVE-0-2024-44986)

Vulnerability from cvelistv5 – Published: 2024-09-04 19:54 – Updated: 2025-11-03 22:14

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in ip6_finish_output2() If skb_expand_head() returns NULL, skb has been freed and associated dst/idev could also have been freed. We need to hold rcu_read_lock() to make sure the dst and associated idev are alive.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/e891b36de161fcd96…
	https://git.kernel.org/stable/c/3574d28caf9a09756…
	https://git.kernel.org/stable/c/6ab6bf731354a6fdb…
	https://git.kernel.org/stable/c/56efc253196751ece…
	https://git.kernel.org/stable/c/da273b377ae0d9bd2…

Impacted products

Vendor

Product

Version

Linux

Affected: 5796015fa968a3349027a27dcd04c71d95c53ba5 , < e891b36de161fcd96f12ff83667473e5067b9037 (git)
Affected: 5796015fa968a3349027a27dcd04c71d95c53ba5 , < 3574d28caf9a09756ae87ad1ea096c6f47b6101e (git)
Affected: 5796015fa968a3349027a27dcd04c71d95c53ba5 , < 6ab6bf731354a6fdbaa617d1ec194960db61cf3b (git)
Affected: 5796015fa968a3349027a27dcd04c71d95c53ba5 , < 56efc253196751ece1fc535a5b582be127b0578a (git)
Affected: 5796015fa968a3349027a27dcd04c71d95c53ba5 , < da273b377ae0d9bd255281ed3c2adb228321687b (git)
Affected: ded37d03440d0ab346a8287cc2ba88b8dc90ceb0 (git)
Affected: 2323690eb05865a657709f4d28eb9538ea97bfc2 (git)
Affected: b34c668a867ffdcf8bd8db4a36512572e82b4a15 (git)

Linux

Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.166 , ≤ 5.15.* (semver)
Unaffected: 6.1.107 , ≤ 6.1.* (semver)
Unaffected: 6.6.48 , ≤ 6.6.* (semver)
Unaffected: 6.10.7 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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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.

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GHSA-X53W-73FX-JMFJ

CVE-2024-44986 (GCVE-0-2024-44986)

Tags

Sightings

Nomenclature