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Vulnerability · Published Dec 22, 2022 · Assigned by mozilla

CVE-2022-0511

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.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 53.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Mozilla developers and community members Gabriele Svelto, Sebastian Hengst, Randell Jesup, Luan Herrera, Lars T Hansen, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 96. 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 < 97.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20firefox97.0-r0ALPINE-CVE-2022-0511
Alpine:v3.21firefox97.0-r0ALPINE-CVE-2022-0511
Alpine:v3.22firefox97.0-r0ALPINE-CVE-2022-0511
Alpine:v3.23firefox97.0-r0ALPINE-CVE-2022-0511
Alpine:v3.21librewolf97.0-r0ALPINE-CVE-2022-0511
Alpine:v3.22librewolf97.0-r0ALPINE-CVE-2022-0511
Alpine:v3.23librewolf97.0-r0ALPINE-CVE-2022-0511
Alpine:v3.24librewolf97.0-r0ALPINE-CVE-2022-0511
Ubuntu:22.04:LTSfirefox97.0+build2-0ubuntu1UBUNTU-CVE-2022-0511
Ubuntu:22.04:LTSmozjs78no fix listedUBUNTU-CVE-2022-0511

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 97

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

References