5.5

CVE-2024-47743: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-47743DEBIAN-CVE-2024-47743
Published 21-10-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-47743 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 25 · Related 24
DLA-4008-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1SUSE-SU-2024:3984-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu94 products
  • linux< 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < 3322fa8f2aa40b0b3651034cd541647a600cc6c0 | ≥ 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < a3765b497a4f5224cb2f7a6a2d3357d3066214ee | ≥ 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < 13b5b401ead95b5d8266f64904086c55b6024900 | ≥ 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < 0d3b0706ada15c333e6f9faf19590ff715e45d1e | ≥ 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < 70fd1966c93bf3bfe3fe6d753eb3d83a76597eef | 5.17
  • linux_kernel≥ 5.17, < 6.1.113 | ≥ 6.2, < 6.6.54 | ≥ 6.7, < 6.10.13 | ≥ 6.11, < 6.11.2
Debian1 product
  • linux< 6.1.115-1 | < 6.11.2-1

3 vendors · 97 products

References

25 links
Show all 25 references