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Vulnerability · Published Dec 22, 2022 · Assigned by mozilla

CVE-2022-34485

Critical 9.8

In plain English

A critical-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 0.7% (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 45.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Mozilla developers Bryce Seager van Dyk and the Mozilla Fuzzing Team reported potential vulnerabilities present in Firefox 101. 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 < 102.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20firefox102.0-r0ALPINE-CVE-2022-34485
Alpine:v3.21firefox102.0-r0ALPINE-CVE-2022-34485
Alpine:v3.22firefox102.0-r0ALPINE-CVE-2022-34485
Alpine:v3.23firefox102.0-r0ALPINE-CVE-2022-34485
Alpine:v3.21librewolf102.0-r0ALPINE-CVE-2022-34485
Alpine:v3.22librewolf102.0-r0ALPINE-CVE-2022-34485
Alpine:v3.23librewolf102.0-r0ALPINE-CVE-2022-34485
Alpine:v3.24librewolf102.0-r0ALPINE-CVE-2022-34485
Ubuntu:22.04:LTSmozjs78no fix listedUBUNTU-CVE-2022-34485
Ubuntu:22.04:LTSmozjs91no fix listedUBUNTU-CVE-2022-34485

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 102

Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References