PT-2025-14345 · Linux+10 · Linux Kernel+10

Published 2025-03-11 · Updated 2026-04-20 · CVE-2025-21964

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue concerns an integer overflow in the Linux kernel when processing the acregmax mount option. This occurs because the user-provided acregmax parameter, of type u32, is converted from seconds to jiffies before validation, leading to a potential integer overflow. The Linux Verification Center (linuxtesting.org) with SVACE discovered this issue.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

ALSA-2025:8142

ALT-PU-2025-12647

ALT-PU-2025-5786

AZL-60278

AZL-60324

BDU:2025-11921

CVE-2025-21964

DLA-4193-1

DSA-5900-1

ECHO-1139-B964-9387

INFSA-2025_8142

MGASA-2025-0142

MGASA-2025-0146

OESA-2025-1446

OESA-2025-1450

OPENSUSE-SU-2025_01614-1

OPENSUSE-SU-2025_01707-1

RHSA-2025:8142

RHSA-2025:8374

RHSA-2025_8142

SUSE-SU-2025:01600-1

SUSE-SU-2025:01614-1

SUSE-SU-2025:01707-1

SUSE-SU-2025:01919-1

SUSE-SU-2025:01951-1

SUSE-SU-2025:01964-1

SUSE-SU-2025:01967-1

SUSE-SU-2025:01972-1

SUSE-SU-2025:20343-1

SUSE-SU-2025:20344-1

SUSE-SU-2025:20354-1

SUSE-SU-2025:20355-1

SUSE-SU-2025_01600-1

SUSE-SU-2025_01614-1

SUSE-SU-2025_01707-1

SUSE-SU-2025_01951-1

SUSE-SU-2025_01964-1

SUSE-SU-2025_01967-1

SUSE-SU-2025_01972-1

USN-7591-1

USN-7591-2

USN-7591-3

USN-7591-4

USN-7591-5

USN-7591-6

USN-7592-1

USN-7593-1

USN-7597-1

USN-7597-2

USN-7598-1

USN-7602-1

USN-7605-1

USN-7605-2

USN-7606-1

USN-7628-1

USN-7655-1

USN-7764-1

USN-7764-2

USN-7765-1

USN-7766-1

USN-7767-1

USN-7767-2

USN-7779-1

USN-7790-1

USN-7800-1

USN-7801-1

USN-7801-2

USN-7801-3

USN-7802-1

USN-7809-1

Affected Products

Alt Linux

Almalinux

Astra Linux

Debian

Linuxmint

Linux Kernel

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

References · 2214

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21964.json · Exploit
• https://ubuntu.com/security/CVE-2025-21945 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35866 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-53181 · Security Note
• https://osv.dev/vulnerability/USN-7591-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-22013 · Security Note
• https://osv.dev/vulnerability/USN-7809-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37819 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37740 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-21964 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22034 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37881 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22022 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-23138 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-58017 · Security Note