CVE-2023-6864 — Out-of-bounds Write in Mozilla Firefox

CWE-787 — Out-of-bounds WriteCWE-120 — Classic Buffer Overflow15 documents9 sources
Severity
8.8HIGHNVD
OSV4.3
EPSS
0.6%
top 30.78%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird+1 more
Timeline
PublishedDec 19
Latest updateJan 11

Description

Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages9 packages

▶CVEListV5mozilla/firefoxunspecified — 121
▶NVDmozilla/firefox< 121.0
▶CVEListV5mozilla/firefox_esrunspecified — 115.6
▶NVDmozilla/firefox_esr< 115.6
▶Ubuntumozilla/firefox< 121.0+build1-0ubuntu0.20.04.1

Also affects: Debian Linux 10.0, 11.0, 12.0

🔴Vulnerability Details

6
OSV
firefox regressions↗2024-01-11
▶
OSV
thunderbird vulnerabilities↗2024-01-02
▶
OSV
firefox vulnerabilities↗2024-01-02
▶
OSV
CVE-2023-6864: Memory safety bugs present in Firefox 120, Firefox ESR 115↗2023-12-19
▶
CVEList
CVE-2023-6864: Memory safety bugs present in Firefox 120, Firefox ESR 115↗2023-12-19
▶

📋Vendor Advisories

8
Ubuntu
Firefox vulnerabilities↗2024-01-02
▶
Ubuntu
Thunderbird vulnerabilities↗2024-01-02
▶
Red Hat
Mozilla: Memory safety bugs fixed in Firefox 121, Firefox ESR 115.6, and Thunderbird 115.6↗2023-12-19
▶
Microsoft
Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could ↗2023-12-12
▶
Debian
CVE-2023-6864: firefox - Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 11...↗2023
▶
CVE-2023-6864 — Out-of-bounds Write in Mozilla Firefox | cvebase