ftruncate: pass a signed offset (Linux Linux)

CVE-2024-42084
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.23 % · centile 14 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: ftruncate: pass a signed offset The old ftruncate() syscall, using the 32-bit off_t misses a sign extension when called in compat mode on 64-bit architectures. As a result, passing a negative length accidentally succeeds in truncating to file size between 2GiB and 4GiB. Changing the type of the compat syscall to the signed compat_off_t changes the behavior so it instead returns -EINVAL. The native entry point, the truncate() syscall and the corresponding loff_t based variants are all correct already and do not suffer from this mistake.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 3f6d078d4accfff8b114f968259a060bfdc7c682 < c329760749b5419769e57cb2be80955d2805f9c9 ; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 < f531d4bc6c5588d713359e42ed65e46816d841d8 ; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 < 84bf6b64a1a0dfc6de7e1b1c776d58d608e7865a ; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 < dbb226d81cd02cee140139c2369791e6f61f2007 ; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 < 5ae6af68410bdad6181ec82104bb9985a7a6a0fa ; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 < 836359247b0403e0634bfbc83e5bb8063fad287a
Linux · Linuxaffected 3.9 ; unaffected 0 < 3.9 ; unaffected 4.19.317 ≤ 4.19.* ; unaffected 5.4.279 ≤ 5.4.* ; unaffected 5.10.221 ≤ 5.10.* ; unaffected 5.15.162 ≤ 5.15.*

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