CVE Database›Document archive›CVE-2023-5217

CVE-2023-5217

libvpx: Heap buffer overflow in vp8 encoding in libvpx

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Severity

Important

Red Hat Product Security

8.8

CVSS 3.1

Review impact separately from score.

Published · September 27, 2023

Updated · November 21, 2025

Description

A heap-based buffer overflow flaw was found in the way libvpx, a library used to process VP8 and VP9 video codecs data, processes certain specially formatted video data via a crafted HTML page. This flaw allows an attacker to crash or remotely execute arbitrary code in an application, such as a web browser that is compiled with this library.

Statement

This security issue has been classified as having an Important security impact. Desktop users are at a high risk of exploitation of this flaw with very minimal interaction. It may compromise the confidentiality, integrity, or availability of resources.

Customers using this application, which does server-side video codecs by linking to the libvpx library, are also potentially impacted by this flaw and are advised to update to the fixed versions of the package.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer