PT-2023-8005 · Mozilla+9 · Firefox+10
Dohyun Lee
·
Published
2023-12-19
·
Updated
2026-02-18
·
CVE-2023-6856
CVSS v2.0
10
High
| Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Firefox ESR versions prior to 115.6
Thunderbird versions prior to 115.6
Firefox versions prior to 121
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.Recommendations
For Firefox ESR versions prior to 115.6, update to version 115.6 or later.
For Thunderbird versions prior to 115.6, update to version 115.6 or later.
For Firefox versions prior to 121, update to version 121 or later.
As a temporary workaround, consider disabling the WebGL
DrawElementsInstanced method until a patch is available.Fix
RCE
Heap Based Buffer Overflow
Memory Corruption
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Firefox
Linuxmint
Red Hat
Red Os
Suse
Thunderbird
Ubuntu