🛡️ CVE-2023-52494 — kernel

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

bus: mhi: host: Add alignment check for event ring read pointer

In the Linux kernel, the following vulnerability has been resolved:

bus: mhi: host: Add alignment check for event ring read pointer

Though we do check the event ring read pointer by "is_valid_ring_ptr"

to make sure it is in the buffer range, but there is another risk the

pointer may be not aligned. Since we are expecting event ring elements

are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer

could lead to multiple issues like DoS or ring buffer memory corruption.

So add a alignment check for event ring read pointer.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level 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 high, availability high.

Affected software

CVE-2023-52494 is recorded against 2 packages.

  • kernel (from 6.2.0 up to 6.7.3)
  • linux-kernel (from 6.7 up to 6.7.3)

Timeline and source

Published on 29 February 2024 and last revised on 27 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2023-52494 on other distributions

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

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2024-02-29
Updated 2026-08-12
Modified 2026-07-27

Affected Packages

Software From version Fixed in
kernel 6.2.0 6.7.3
linux-kernel 6.7 6.7.3

Similar Threats

Site Security Check

Is kernel part of your stack?

CVE-2023-52494 is rated CVSS 7.8 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.