ipv6: fix possible UAF in ip6_finish_output2()
Summary
| CVE | CVE-2024-44986 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2024-09-04 20:15:07 UTC |
| Updated | 2026-04-09 17:42:15 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-416
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 11.0 | All | All | All |
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 5796015fa968a3349027a27dcd04c71d95c53ba5 e891b36de161fcd96f12ff83667473e5067b9037 git | Not specified |
| CNA | Linux | Linux | affected 5796015fa968a3349027a27dcd04c71d95c53ba5 3574d28caf9a09756ae87ad1ea096c6f47b6101e git | Not specified |
| CNA | Linux | Linux | affected 5796015fa968a3349027a27dcd04c71d95c53ba5 6ab6bf731354a6fdbaa617d1ec194960db61cf3b git | Not specified |
| CNA | Linux | Linux | affected 5796015fa968a3349027a27dcd04c71d95c53ba5 56efc253196751ece1fc535a5b582be127b0578a git | Not specified |
| CNA | Linux | Linux | affected 5796015fa968a3349027a27dcd04c71d95c53ba5 da273b377ae0d9bd255281ed3c2adb228321687b git | Not specified |
| CNA | Linux | Linux | affected ded37d03440d0ab346a8287cc2ba88b8dc90ceb0 git | Not specified |
| CNA | Linux | Linux | affected 2323690eb05865a657709f4d28eb9538ea97bfc2 git | Not specified |
| CNA | Linux | Linux | affected b34c668a867ffdcf8bd8db4a36512572e82b4a15 git | Not specified |
| CNA | Linux | Linux | affected 5.14 | Not specified |
| CNA | Linux | Linux | unaffected 5.14 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.166 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.107 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.48 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.10.7 6.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.11 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/da273b377ae0d9bd255281ed3c2adb228321687b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/6ab6bf731354a6fdbaa617d1ec194960db61cf3b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/56efc253196751ece1fc535a5b582be127b0578a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/e891b36de161fcd96f12ff83667473e5067b9037 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| lists.debian.org/debian-lts-announce/2025/01/msg00001.html | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | Mailing List, Third Party Advisory |
| git.kernel.org/stable/c/3574d28caf9a09756ae87ad1ea096c6f47b6101e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.