CVE ID:	CVE-2023-6856
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.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2023-6856 Debian Security Information: DSA-5581 (Google Search) https://www.debian.org/security/2023/dsa-5581 Debian Security Information: DSA-5582 (Google Search) https://www.debian.org/security/2023/dsa-5582 https://security.gentoo.org/glsa/202401-10 https://bugzilla.mozilla.org/show_bug.cgi?id=1843782 https://bugzilla.mozilla.org/show_bug.cgi?id=1843782 https://www.mozilla.org/security/advisories/mfsa2023-54/ https://www.mozilla.org/security/advisories/mfsa2023-54/ https://www.mozilla.org/security/advisories/mfsa2023-55/ https://www.mozilla.org/security/advisories/mfsa2023-55/ https://www.mozilla.org/security/advisories/mfsa2023-56/ https://www.mozilla.org/security/advisories/mfsa2023-56/ https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html