CVE-2024-27397

Advisory lineage Upstream: 0 Downstream: 40
Modified
Published: 09 May 2024, 16:37
Last modified:12 May 2026, 11:51

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7 HIGH
v3.1 (nvd)
EPSS Score
0.04% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 May 2024, 16:37
Published
Vulnerability first disclosed
12 May 2026, 11:51
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, store it in the nftables per-netns area. Update set backend .insert, .deactivate and sync gc path to use the timestamp, this avoids that an element expires while control plane transaction is still unfinished. .lookup and .update, which are used from packet path, still use the current time to check if the element has expired. And .get path and dump also since this runs lockless under rcu read size lock. Then, there is async gc which also needs to check the current time since it runs asynchronously from a workqueue.

CVSS Metrics

  • v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.04%• Percentile: 11%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • linux•linux

    ≥ c3e1b005ed1cc068fc9d454a6e745830d55d251d, < f8dfda798650241c1692058713ca4fef8e429061 | ≥ c3e1b005ed1cc068fc9d454a6e745830d55d251d, < eaf1a29ea5d7dba8e84e9e9f3b3f47d0cd540bfe | ≥ c3e1b005ed1cc068fc9d454a6e745830d55d251d, < 7b17de2a71e56c10335b565cc7ad238e6d984379 | ≥ c3e1b005ed1cc068fc9d454a6e745830d55d251d, < 0d40e8cb1d1f56a994cdd2e015af622fdca9ed4d | ≥ c3e1b005ed1cc068fc9d454a6e745830d55d251d, < b45176b869673417ace338b87cf9cdb66e2eeb01 | ≥ c3e1b005ed1cc068fc9d454a6e745830d55d251d, < 7fa2e2960fff8322ce2ded57b5f8e9cbc450b967 | ≥ c3e1b005ed1cc068fc9d454a6e745830d55d251d, < 383182db8d58c4237772ba0764cded4938a235c3 | ≥ c3e1b005ed1cc068fc9d454a6e745830d55d251d, < 7395dfacfff65e9938ac0889dafa1ab01e987d15 | 4.1

  • linux•linux_kernel

    ≥ 4.1, < 4.19.320 | ≥ 4.20, < 5.4.282 | ≥ 5.5, < 5.10.224 | ≥ 5.11, < 5.15.165 | ≥ 5.16, < 6.1.97 | ≥ 6.2, < 6.6.84 | ≥ 6.7, < 6.7.5 | 6.8:rc1 | 6.8:rc2 | 6.8:rc3

References (11)