5.5

CVE-2024-43867: linux Integer Underflow (Wrap or Wraparound)

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-43867DEBIAN-CVE-2024-43867
Published 20-08-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-43867 is a medium (CVSS 5.5) Integer Underflow (Wrap or Wraparound) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.3% 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 28 · Related 24
DLA-3912-1DLA-4008-1MGASA-2024-0309MGASA-2024-0310SUSE-SU-2024:3190-1SUSE-SU-2024:3194-1

Timeline

  1. 20-08-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: prime: fix refcount underflow Calling nouveau_bo_ref() on a nouveau_bo without initializing it (and hence the backing ttm_bo) leads to a refcount underflow. Instead of calling nouveau_bo_ref() in the unwind path of drm_gem_object_init(), clean things up manually. (cherry picked from commit 1b93f3e89d03cfc576636e195466a0d728ad8de5)

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 18-09-2026

18-09-202618-10-2026
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

Ubuntu129 products
  • linuxAll versions (No fix recorded) | < 5.4.0-200.220 | < 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1135.145 | < 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ab9ccb96a6e6f95bcde6b8b2a524370efdbfdcd6, < 3bcb8bba72ce89667fa863054956267c450c47ef | ≥ ab9ccb96a6e6f95bcde6b8b2a524370efdbfdcd6, < 906372e753c5027a1dc88743843b6aa2ad1aaecf | ≥ ab9ccb96a6e6f95bcde6b8b2a524370efdbfdcd6, < 16998763c62bb465ebc409d0373b9cdcef1a61a6 | ≥ ab9ccb96a6e6f95bcde6b8b2a524370efdbfdcd6, < ebebba4d357b6c67f96776a48ddbaf0060fa4c10 | ≥ ab9ccb96a6e6f95bcde6b8b2a524370efdbfdcd6, < f23cd66933fe76b84d8e282e5606b4d99068c320 | ≥ ab9ccb96a6e6f95bcde6b8b2a524370efdbfdcd6, < 2a1b327d57a8ac080977633a18999f032d7e9e3f | ≥ ab9ccb96a6e6f95bcde6b8b2a524370efdbfdcd6, < a9bf3efc33f1fbf88787a277f7349459283c9b95 | 3.9
  • linux_kernel≥ 3.9, < 5.4.282 | ≥ 5.5, < 5.10.224 | ≥ 5.11, < 5.15.165 | ≥ 5.16, < 6.1.104 | ≥ 6.2, < 6.6.45 | ≥ 6.7, < 6.10.4 | 6.11:rc1
Debian1 product
  • linux< 6.1.106-1 | < 6.10.4-1

3 vendors · 132 products

References

29 links
Show all 29 references