VDB-249115 · CVE-2023-6879 · GCVE-0-2023-6879

libaom up to 3.7.0 Multi-Thread av1_loop_restoration_dealloc heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.3	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in libaom up to 3.7.0. This impacts the function av1_loop_restoration_dealloc of the component Multi-Thread Handler. This manipulation causes heap-based overflow. This vulnerability is registered as CVE-2023-6879. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in libaom up to 3.7.0 and classified as critical. Affected by this vulnerability is the function av1_loop_restoration_dealloc of the component Multi-Thread Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is 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(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Increasing the resolution of video frames, while performing a multi-threaded encode, can result in a heap overflow in av1_loop_restoration_dealloc().

The weakness was published 12/27/2023. It is possible to read the advisory at crbug.com. This vulnerability is known as CVE-2023-6879 since 12/15/2023. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.7.1 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

libaom

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.0
CNA Vector (Google Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libaom 3.7.1

Timelineinfo

12/15/2023 🔍
12/27/2023 +12 days 🔍
12/27/2023 +0 days 🔍
06/24/2026 +910 days 🔍

Sourcesinfo

Advisory: FEDORA-2024-210776b8c7
Status: Confirmed

CVE: CVE-2023-6879 (🔍)
GCVE (CVE): GCVE-0-2023-6879
GCVE (VulDB): GCVE-100-249115

Entryinfo

Created: 12/28/2023 00:04
Updated: 06/24/2026 02:22
Changes: 12/28/2023 00:04 (49), 01/19/2024 18:07 (1), 01/19/2024 18:15 (12), 06/24/2026 02:22 (16)
Complete: 🔍
Cache ID: 216::103