Fiche vulnérabilité
CVE-2025-21962 : faille moyenne linux linux kernel (CVSS 5.5)
Description
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing closetimeo mount option User-provided mount parameter closetimeo of type u32 is intended to have an upper limit, but before it is validated, the value is converted from seconds to jiffies which can lead to an integer overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE.
En bref
- Sévérité
- Moyenne (CVSS 5.5)
- Vecteur CVSS
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 1 avr. 2025
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- linux linux kernel
Références
- Fiche CVE-2025-21962 sur le NVD (NIST)
- git.kernel.org/stable/c/1c46673be93dd2954f44fe370fb4f2b8e6214…
- git.kernel.org/stable/c/513f6cf2e906a504b7ab0b62b2eea993a6f64…
- git.kernel.org/stable/c/6c13fcb7cf59ae65940da1dfea80144e42921…
- git.kernel.org/stable/c/9968fcf02cf6b0f78fbacf3f63e7821626038…
- git.kernel.org/stable/c/b24edd5c191c2689c59d0509f0903f9487eb6…
- git.kernel.org/stable/c/d5a30fddfe2f2e540f6c43b59cf701809995f…
- lists.debian.org/debian-lts-announce/2025/05/msg00045.html