🛡️ CVE-2023-53803 on Debian — linux

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() A fix for: BUG: KASAN: slab-out-of-bounds in ses_enclosure_data_process+0x949/0xe30 [ses] Read of size 1 at addr ffff88a1b043a451 by task systemd-udevd/3271 Checking after (and before in next loop) addl_desc_ptr[1] is sufficient, we expect the size to be sanitized before first access to addl_desc_ptr[1]. Make sure we don't walk beyond end of page.

Distribution advisory

This page covers CVE-2023-53803 as tracked by Debian, for the package linux. The fix is available in version 6.1.20-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability high.

Affected software

DEBIAN-CVE-2023-53803 is recorded against 1 package.

linux (fixed in 6.1.20-1)

Timeline and source

Published on 9 December 2025 and last revised on 5 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2023-53803 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

BellSoft Base record Ubuntu

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2025-12-09

Updated 2026-08-12

Modified 2026-08-05

Fix URL N/A

Affected Packages

Software	From version	Fixed in
linux	—	6.1.20-1

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2023-53803

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