ubifs: Fix memory leak in do_rename (Linux Linux)

CVE-2023-53396
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.15 % · centile 4 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memory leak in do_rename If renaming a file in an encrypted directory, function fscrypt_setup_filename allocates memory for a file name. This name is never used, and before returning to the caller the memory for it is not freed. When running kmemleak on it we see that it is registered as a leak. The report below is triggered by a simple program 'rename' that renames a file in an encrypted directory: unreferenced object 0xffff888101502840 (size 32): comm "rename", pid 9404, jiffies 4302582475 (age 435.735s) backtrace: __kmem_cache_alloc_node __kmalloc fscrypt_setup_filename do_rename ubifs_rename vfs_rename do_renameat2 To fix this we can remove the call to fscrypt_setup_filename as it's not needed.

Faiblesses (CWE)

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

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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 c67bc98d1f0853bb196e9c48eab38b6f2ddab795 < 43b2f7d690697182beed6f71aa57b7249d3cfc9c ; affected 278d9a243635f26c05ad95dcf9c5a593b9e04dc6 < 9f565752b328fe53c9e42b7d4e4d89a1da63d738 ; affected 278d9a243635f26c05ad95dcf9c5a593b9e04dc6 < 7e264f67b7d6580eff5c2696961039fd05c69258 ; affected 278d9a243635f26c05ad95dcf9c5a593b9e04dc6 < 517ddc0259d7a7231486bdafde8035c478bc4088 ; affected 278d9a243635f26c05ad95dcf9c5a593b9e04dc6 < 3a36d20e012903f45714df2731261fdefac900cb ; affected 17495eb2f7f08113b50aba298c2c1a045824c4f7
Linux · Linuxaffected 5.18 ; unaffected 0 < 5.18 ; unaffected 5.15.112 ≤ 5.15.* ; unaffected 6.1.28 ≤ 6.1.* ; unaffected 6.2.15 ≤ 6.2.* ; unaffected 6.3.2 ≤ 6.3.*

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