CVE-2024-47743

MEDIUM EPSS 12.5%
Published Oct 21, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: KEYS: prevent NULL pointer dereference in find_asymmetric_key() In find_asymmetric_key(), if all NULLs are passed in the id_{0,1,2} arguments, the kernel will first emit WARN but then have an oops because id_2 gets dereferenced anyway. Add the missing id_2 check and move WARN_ON() to the final else branch to avoid duplicate NULL checks. Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.17  –  <6.1.113
linuxlinux_kernel*≥6.2  –  <6.6.54
linuxlinux_kernel*≥6.7  –  <6.10.13
linuxlinux_kernel*≥6.11  –  <6.11.2

References 6

  • git.kernel.org https://git.kernel.org/stable/c/0d3b0706ada15c333e6f9faf19590ff715e45d1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/13b5b401ead95b5d8266f64904086c55b6024900
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3322fa8f2aa40b0b3651034cd541647a600cc6c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70fd1966c93bf3bfe3fe6d753eb3d83a76597eef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a3765b497a4f5224cb2f7a6a2d3357d3066214ee
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0d3b0706ada15c333e6f9faf19590ff715e45d1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/13b5b401ead95b5d8266f64904086c55b6024900
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3322fa8f2aa40b0b3651034cd541647a600cc6c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70fd1966c93bf3bfe3fe6d753eb3d83a76597eef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a3765b497a4f5224cb2f7a6a2d3357d3066214ee
    Patch