Vulnerability Details : CVE-2023-6856
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.
Vulnerability category: OverflowMemory CorruptionExecute code
Products affected by CVE-2023-6856
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-6856
1.93%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-6856
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2023-6856
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-6856
-
https://www.mozilla.org/security/advisories/mfsa2023-54/
Security Vulnerabilities fixed in Firefox ESR 115.6 — MozillaVendor Advisory
-
https://security.gentoo.org/glsa/202401-10
Mozilla Firefox: Multiple Vulnerabilities (GLSA 202401-10) — Gentoo securityThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html
[SECURITY] [DLA 3698-1] thunderbird security updateMailing List;Third Party Advisory
-
https://www.debian.org/security/2023/dsa-5582
Debian -- Security Information -- DSA-5582-1 thunderbirdThird Party Advisory
-
https://www.debian.org/security/2023/dsa-5581
Debian -- Security Information -- DSA-5581-1 firefox-esrThird Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2023-56/
Security Vulnerabilities fixed in Firefox 121 — MozillaVendor Advisory
-
https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html
[SECURITY] [DLA 3697-1] firefox-esr security updateMailing List;Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2023-55/
Security Vulnerabilities fixed in Thunderbird 115.6 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1843782
Access DeniedIssue Tracking;Permissions Required
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