CVE-2023-52581 (GCVE-0-2023-52581)

Vulnerability from cvelistv5 – Published: 2024-03-02 21:59 – Updated: 2025-05-04 12:49
VLAI?
Title
netfilter: nf_tables: fix memleak when more than 255 elements expired
Summary
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.
Severity ?
6.3 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27 , < 7cf055b43756b10aa2b851c927c940f5ed652125 (git)
Affected: bbdb3b65aa91aa0a32b212f27780b28987f2d94f , < a995a68e8a3b48533e47c856865d109a1f1a9d01 (git)
Affected: 448be0774882f95a74fa5eb7519761152add601b , < 09c85f2d21ab6b5acba31a037985b13e8e6565b8 (git)
Affected: d19e8bf3ea4114dd21fc35da21f398203d7f7df1 , < ef99506eaf1dc31feff1adfcfd68bc5535a22171 (git)
Affected: ea3eb9f2192e4fc33b795673e56c97a21987f868 , < 7e5d732e6902eb6a37b35480796838a145ae5f07 (git)
Affected: 5f68718b34a531a556f2f50300ead2862278da26 , < 4aea243b6853d06c1d160a9955b759189aa02b14 (git)
Affected: 5f68718b34a531a556f2f50300ead2862278da26 , < cf5000a7787cbc10341091d37245a42c119d26c5 (git)
Affected: 0624f190b5742a1527cd938295caa8dc5281d4cd (git)
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    Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.5.6 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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