CVE-2023-52581

Advisory lineage Upstream: 0 Downstream: 16
Analyzed
Published: 02 Mar 2024, 21:59
Last modified:23 May 2026, 15:26

Vulnerability Summary

Overall Risk (default)
medium
25/100
CVSS Score
6.3 MEDIUM
v3.1 (cve.org)
EPSS Score
<0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Mar 2024, 21:59
Published
Vulnerability first disclosed
23 May 2026, 15:26
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memleak when more than 255 elements expired When more than 255 elements expired we're supposed to switch to a new gc container structure. This never happens: u8 type will wrap before reaching the boundary and nft_trans_gc_space() always returns true. This means we recycle the initial gc container structure and lose track of the elements that came before. While at it, don't deref 'gc' after we've passed it to call_rcu.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 1%

Techniques & Countermeasures

  • CWE-401•Missing Release of Memory after Effective Lifetime

    The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Affected Systems

  • linux•linux

    ≥ 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27, < 7cf055b43756b10aa2b851c927c940f5ed652125 | ≥ bbdb3b65aa91aa0a32b212f27780b28987f2d94f, < a995a68e8a3b48533e47c856865d109a1f1a9d01 | ≥ 448be0774882f95a74fa5eb7519761152add601b, < 09c85f2d21ab6b5acba31a037985b13e8e6565b8 | ≥ d19e8bf3ea4114dd21fc35da21f398203d7f7df1, < ef99506eaf1dc31feff1adfcfd68bc5535a22171 | ≥ ea3eb9f2192e4fc33b795673e56c97a21987f868, < 7e5d732e6902eb6a37b35480796838a145ae5f07 | ≥ 5f68718b34a531a556f2f50300ead2862278da26, < 4aea243b6853d06c1d160a9955b759189aa02b14 | ≥ 5f68718b34a531a556f2f50300ead2862278da26, < cf5000a7787cbc10341091d37245a42c119d26c5 | 0624f190b5742a1527cd938295caa8dc5281d4cd | ≥ 6.4.11, < 6.5 | 6.5

  • linux•linux_kernel

    ≥ 6.5, < 6.5.6 | 6.6:rc1 | 6.6:rc2

References (7)