CVE-2023-6856

CVE Details

Release Date:

2023-12-19

Description

The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

See more information about CVE-2023-6856 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	8.8	Base Metrics:	AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	Required
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (firefox)	ELSA-2024-0026	2024-01-02
Oracle Linux version 7 (thunderbird)	ELSA-2024-0027	2024-01-02
Oracle Linux version 8 (firefox)	ELSA-2024-0012	2024-01-03
Oracle Linux version 8 (thunderbird)	ELSA-2024-0003	2024-01-03
Oracle Linux version 9 (firefox)	ELSA-2024-0025	2024-01-03
Oracle Linux version 9 (thunderbird)	ELSA-2024-0001	2024-01-03

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team