PT-2025-49663 · Linux · Linux Kernel

Published 2023-02-21 · Updated 2026-02-24 · CVE-2023-53803

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description A flaw exists in the Linux kernel’s SCSI subsystem, specifically within the ses enclosure data process() function. This issue involves a slab-out-of-bounds read condition, potentially triggered by insufficient sanitization of data before accessing memory locations. The problem occurs when processing enclosure data, leading to a potential kernel crash. The issue was identified through Kernel Address Sanitizer (KASAN) reporting.

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

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2026-01332

CVE-2023-53803

RHSA-2023:6583

RHSA-2023:7077

SUSE-SU-2026:0263-1

SUSE-SU-2026:0316-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

Affected Products

Linux Kernel

References · 1121

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53803.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53803 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53803 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53803 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53803 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53803 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-53803 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0411-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0263-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53803 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0316-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01332 · Security Note
• https://ubuntu.com/security/CVE-2023-53803 · Vendor Advisory