PT-2025-37699 · Linux+5 · Linux Kernel+5

Published 2023-01-01 · Updated 2026-05-26 · CVE-2023-53258

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 Linux kernel contains a flaw where an underflow may occur when using a display with a large vblank region and a low refresh rate. The issue is addressed by simplifying the calculation of vblank nom and increasing the value for VBlankNomDefaultUS to 800us.

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

Exploit

DoS

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

ALSA-2025_16880

BDU:2026-05885

CVE-2023-53258

RHSA-2024:2394

RHSA-2024_2394

SUSE-SU-2025:03600-1

SUSE-SU-2025:03615-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:3761-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

Affected Products

Astra Linux

Debian

Linux Kernel

Red Hat

Red Os

Suse

References · 1991

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53258.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:4132-1 · Vendor Advisory
• https://git.kernel.org/stable/c/d5741133e6e2f304b40ca1da0e16f62af06f4d22 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4057-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53258 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53258 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:3751-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20851-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53258 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03634-1 · Vendor Advisory
• https://git.kernel.org/stable/c/1a4bcdbea4319efeb26cc4b05be859a7867e02dc · Patch
• https://git.kernel.org/stable/c/64bc8e10c87adf60b2d32aacf3afb288e51d5a62 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53258 · Security Note