Buffer Access with Incorrect Length Value Affecting kernel-debug-devel-matched package, versions <0:5.14.0-362.13.1.el9_3


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS9-KERNELDEBUGDEVELMATCHED-14712445
  • published26 Dec 2025
  • disclosed24 Dec 2025

Introduced: 24 Dec 2025

CVE-2023-53996  (opens in a new tab)
CWE-805  (opens in a new tab)

How to fix?

Upgrade Centos:9 kernel-debug-devel-matched to version 0:5.14.0-362.13.1.el9_3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel-matched package and not the kernel-debug-devel-matched package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

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

x86/sev: Make enc_dec_hypercall() accept a size instead of npages

enc_dec_hypercall() accepted a page count instead of a size, which forced its callers to round up. As a result, non-page aligned vaddrs caused pages to be spuriously marked as decrypted via the encryption status hypercall, which in turn caused consistent corruption of pages during live migration. Live migration requires accurate encryption status information to avoid migrating pages from the wrong perspective.

CVSS Base Scores

version 3.1