netfilter: nf_tables: fix memleak when more than 255 elements expired (Linux Linux)

CVE-2023-52581
MEDIUM 6.3

En bref

Source
NVD
EPSS
EPSS 0.26 % · centile 17 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

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.

Faiblesses (CWE)

  • CWE-401 — Mémoire non libérée après sa durée de vie utile

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27 < 7cf055b43756b10aa2b851c927c940f5ed652125 ; affected bbdb3b65aa91aa0a32b212f27780b28987f2d94f < a995a68e8a3b48533e47c856865d109a1f1a9d01 ; affected 448be0774882f95a74fa5eb7519761152add601b < 09c85f2d21ab6b5acba31a037985b13e8e6565b8 ; affected d19e8bf3ea4114dd21fc35da21f398203d7f7df1 < ef99506eaf1dc31feff1adfcfd68bc5535a22171 ; affected ea3eb9f2192e4fc33b795673e56c97a21987f868 < 7e5d732e6902eb6a37b35480796838a145ae5f07 ; affected 5f68718b34a531a556f2f50300ead2862278da26 < 4aea243b6853d06c1d160a9955b759189aa02b14
Linux · Linuxaffected 6.5 ; unaffected 0 < 6.5 ; unaffected 6.5.6 ≤ 6.5.* ; unaffected 6.6 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD