Google Chromium libvpx up to 1.13.0 VP9 heap-based overflow

Summaryinfo

A vulnerability described as critical has been identified in Google Chromium libvpx up to 1.13.0. Impacted is an unknown function of the component VP9 Handler. Such manipulation leads to heap-based overflow. This vulnerability is listed as CVE-2023-6349. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Chromium libvpx up to 1.13.0. Affected by this issue is an unknown code block of the component VP9 Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

A heap overflow vulnerability exists in libvpx - Encoding a frame that has larger dimensions than the originally configured size with VP9 may result in a heap overflow in libvpx. We recommend upgrading to version 1.13.1 or above

The advisory is shared for download at crbug.com. This vulnerability is handled as CVE-2023-6349 since 11/28/2023. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/06/2025).

The vulnerability scanner Nessus provides a plugin with the ID 243419 (Amazon Linux 2 : libvpx (ALAS-2025-2960)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.13.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (243419). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Google

Name

• Chromium libvpx

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13.0

License

• free

Website

• Vendor: https://www.google.com/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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