Vulnerability · Published Dec 22, 2022 · Assigned by mozilla
CVE-2022-34476
Critical 9.8
In plain English
A critical-severity improper input validation 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 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 46.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
ASN.1 parsing of an indefinite SEQUENCE inside an indefinite GROUP could have resulted in the parser accepting malformed ASN.1. This vulnerability affects Firefox < 102.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 102.0-r0 | ALPINE-CVE-2022-34476 |
| Alpine:v3.21 | firefox | 102.0-r0 | ALPINE-CVE-2022-34476 |
| Alpine:v3.22 | firefox | 102.0-r0 | ALPINE-CVE-2022-34476 |
| Alpine:v3.23 | firefox | 102.0-r0 | ALPINE-CVE-2022-34476 |
| Alpine:v3.21 | librewolf | 102.0-r0 | ALPINE-CVE-2022-34476 |
| Alpine:v3.22 | librewolf | 102.0-r0 | ALPINE-CVE-2022-34476 |
| Alpine:v3.23 | librewolf | 102.0-r0 | ALPINE-CVE-2022-34476 |
| Alpine:v3.24 | librewolf | 102.0-r0 | ALPINE-CVE-2022-34476 |
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H