CVE-2025-21962

MEDIUM EPSS 6.3%
Published Apr 1, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 1, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
6.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

Affected Products 11

VendorProductVersionRange
linuxlinux_kernel*≥5.15.107  –  <5.15.180
linuxlinux_kernel*≥6.0  –  <6.1.132
linuxlinux_kernel*≥6.2  –  <6.6.84
linuxlinux_kernel*≥6.7  –  <6.12.20
linuxlinux_kernel*≥6.13  –  <6.13.8
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/1c46673be93dd2954f44fe370fb4f2b8e6214224
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/513f6cf2e906a504b7ab0b62b2eea993a6f64558
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c13fcb7cf59ae65940da1dfea80144e42921e53
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9968fcf02cf6b0f78fbacf3f63e782162603855a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b24edd5c191c2689c59d0509f0903f9487eb6317
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d5a30fddfe2f2e540f6c43b59cf701809995faef
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1c46673be93dd2954f44fe370fb4f2b8e6214224
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/513f6cf2e906a504b7ab0b62b2eea993a6f64558
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c13fcb7cf59ae65940da1dfea80144e42921e53
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9968fcf02cf6b0f78fbacf3f63e782162603855a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b24edd5c191c2689c59d0509f0903f9487eb6317
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d5a30fddfe2f2e540f6c43b59cf701809995faef
    Patch