Vulnerability · Published Dec 22, 2022 · Assigned by mozilla
CVE-2022-0843
High 8.8
In plain English
A high-severity out-of-bounds write in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Mozilla developers Kershaw Chang, Ryan VanderMeulen, and Randell Jesup reported memory safety bugs present in Firefox 97. 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 < 98.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 98.0-r0 | ALPINE-CVE-2022-0843 |
| Alpine:v3.21 | firefox | 98.0-r0 | ALPINE-CVE-2022-0843 |
| Alpine:v3.22 | firefox | 98.0-r0 | ALPINE-CVE-2022-0843 |
| Alpine:v3.23 | firefox | 98.0-r0 | ALPINE-CVE-2022-0843 |
| Alpine:v3.21 | librewolf | 98.0-r0 | ALPINE-CVE-2022-0843 |
| Alpine:v3.22 | librewolf | 98.0-r0 | ALPINE-CVE-2022-0843 |
| Alpine:v3.23 | librewolf | 98.0-r0 | ALPINE-CVE-2022-0843 |
| Alpine:v3.24 | librewolf | 98.0-r0 | ALPINE-CVE-2022-0843 |
| Ubuntu:22.04:LTS | firefox | 1:1snap1-0ubuntu1 | UBUNTU-CVE-2022-0843 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2022-0843 |
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H