5.5

CVE-2024-43854: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-43854DEBIAN-CVE-2024-43854
Published 17-08-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-43854 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.3% 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
0.23%
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 45 · Related 35
DLA-3912-1DLA-4008-1MGASA-2024-0309MGASA-2024-0310RHSA-2024:10772RHSA-2024:10773

Timeline

  1. 17-08-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: block: initialize integrity buffer to zero before writing it to media Metadata added by bio_integrity_prep is using plain kmalloc, which leads to random kernel memory being written media. For PI metadata this is limited to the app tag that isn't used by kernel generated metadata, but for non-PI metadata the entire buffer leaks kernel memory. Fix this by adding the __GFP_ZERO flag to allocations for writes.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

0.00 pp

From 0.23% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.23%

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) | < 4.4.0-266.300 | < 4.15.0-231.243 | < 5.4.0-200.220 | < 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1141.147 | < 4.4.0-1179.194 | < 4.15.0-1175.188 | < 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≥ 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b, < 9f4af4cf08f9a0329ade3d938f55d2220c40d0a6 | ≥ 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b, < 129f95948a96105c1fad8e612c9097763e88ac5f | ≥ 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b, < 3fd11fe4f20756b4c0847f755a64cd96f8c6a005 | ≥ 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b, < cf6b45ea7a8df0f61bded1dc4a8561ac6ad143d2 | ≥ 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b, < d418313bd8f55c079a7da12651951b489a638ac1 | ≥ 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b, < 23a19655fb56f241e592041156dfb1c6d04da644 | ≥ 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b, < ebc0e91ba76dc6544fff9f5b66408b1982806a00 | ≥ 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b, < 899ee2c3829c5ac14bfc7d3c4a5846c0b709b78f | 2.6.27
  • linux_kernel≥ 2.6.27, < 5.15.165 | ≥ 5.16, < 6.1.103 | ≥ 6.2, < 6.6.44 | ≥ 6.7, < 6.10.3
Debian1 product
  • linux< 6.1.106-1 | < 6.10.3-1

3 vendors · 132 products

References

37 links
Show all 37 references