NetSight
high8.8

CVE-2023-6856

The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver.

Impact

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.

Affected products

VendorProductAffected versions
MozillaFirefox
before 121.0
MozillaFirefox Esr
before 115.6
MozillaThunderbird
before 115.6
DebianDebian Linux
Versions 10.0, 11.0, 12.0

Weakness classification

References