CVE-2023-5176 — Out-of-bounds Write in Mozilla Firefox
Severity
9.8CRITICALNVD
OSV8.8OSV6.5
EPSS
0.7%
top 27.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 27
Latest updateOct 11
Description
Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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 < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9
Affected Packages9 packages
Also affects: Debian Linux 10.0, 11.0, 12.0
🔴Vulnerability Details
6📋Vendor Advisories
8Red Hat▶
Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3↗2023-09-26
Microsoft▶
Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could ↗2023-09-12
Debian▶
CVE-2023-5176: firefox - Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 11...↗2023