7.8

CVE-2024-27395: debian debian_linux Use After Free

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2024-27395DEBIAN-CVE-2024-27395
Published 09-05-2024Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2024-27395 is a high (CVSS 7.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.24%
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 34 · Related 26
DLA-3840-1DLA-3842-1MGASA-2024-0263MGASA-2024-0266RHSA-2024:5101RHSA-2024:5102

Timeline

  1. 09-05-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovs_ct_exit Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ovs_ct_limit_exit, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.24%

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

Ubuntu124 products
  • linux< 5.4.0-189.209 | < 5.15.0-116.126 | < 6.8.0-40.40
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1128.138 | < 5.15.0-1065.71 | < 6.8.0-1013.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ 11efd5cb04a184eea4f57b68ea63dddd463158d1, < 2db9a8c0a01fa1c762c1e61a13c212c492752994 | ≥ 11efd5cb04a184eea4f57b68ea63dddd463158d1, < 589523cf0b384164e445dd5db8d5b1bf97982424 | ≥ 11efd5cb04a184eea4f57b68ea63dddd463158d1, < 35880c3fa6f8fe281a19975d2992644588ca33d3 | ≥ 11efd5cb04a184eea4f57b68ea63dddd463158d1, < 9048616553c65e750d43846f225843ed745ec0d4 | ≥ 11efd5cb04a184eea4f57b68ea63dddd463158d1, < bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1 | ≥ 11efd5cb04a184eea4f57b68ea63dddd463158d1, < eaa5e164a2110d2fb9e16c8a29e4501882235137 | ≥ 11efd5cb04a184eea4f57b68ea63dddd463158d1, < edee0758747d7c219e29db9ed1d4eb33e8d32865 | ≥ 11efd5cb04a184eea4f57b68ea63dddd463158d1, < 5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2 | 4.18
  • linux_kernel≥ 4.18, < 4.19.313 | ≥ 4.20, < 5.4.275 | ≥ 5.5, < 5.10.216 | ≥ 5.11, < 5.15.158 | ≥ 5.16, < 6.1.90 | ≥ 6.2, < 6.6.30 | ≥ 6.7, < 6.8.9 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4 | 6.9:rc5

3 vendors · 128 products

References

35 links
Show all 35 references