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Vulnerability · Published Dec 22, 2022 · Assigned by mozilla

CVE-2022-34484

High 8.8

In plain English

A high-severity use-after-free in Firefox from Mozilla. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.0%top 36.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

The Mozilla Fuzzing Team reported potential vulnerabilities present in Thunderbird 91.10. 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, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:9thunderbird91.11.0-2.el9_0.almaALSA-2022:5482
Alpine:v3.20firefox102.0-r0ALPINE-CVE-2022-34484
Alpine:v3.21firefox102.0-r0ALPINE-CVE-2022-34484
Alpine:v3.22firefox102.0-r0ALPINE-CVE-2022-34484
Alpine:v3.23firefox102.0-r0ALPINE-CVE-2022-34484
Alpine:v3.20firefox-esr91.11.0-r0ALPINE-CVE-2022-34484
Alpine:v3.21firefox-esr91.11.0-r0ALPINE-CVE-2022-34484
Alpine:v3.22firefox-esr91.11.0-r0ALPINE-CVE-2022-34484
Alpine:v3.23firefox-esr91.11.0-r0ALPINE-CVE-2022-34484
Alpine:v3.21librewolf102.0-r0ALPINE-CVE-2022-34484
Alpine:v3.22librewolf102.0-r0ALPINE-CVE-2022-34484
Alpine:v3.23librewolf102.0-r0ALPINE-CVE-2022-34484
Alpine:v3.24librewolf102.0-r0ALPINE-CVE-2022-34484
Alpine:v3.20thunderbird102.0-r0, 102.1.0-r0ALPINE-CVE-2022-34484
Alpine:v3.21thunderbird102.0-r0, 102.1.0-r0ALPINE-CVE-2022-34484
Alpine:v3.22thunderbird102.0-r0, 102.1.0-r0ALPINE-CVE-2022-34484
Alpine:v3.23thunderbird102.0-r0, 102.1.0-r0ALPINE-CVE-2022-34484
Debian:12firefox-esr91.11.0esr-1DEBIAN-CVE-2022-34484
Debian:13firefox-esr91.11.0esr-1DEBIAN-CVE-2022-34484
Debian:14firefox-esr91.11.0esr-1DEBIAN-CVE-2022-34484
Debian:12thunderbird1:91.11.0-1DEBIAN-CVE-2022-34484
Debian:13thunderbird1:91.11.0-1DEBIAN-CVE-2022-34484
Debian:14thunderbird1:91.11.0-1DEBIAN-CVE-2022-34484
Rocky Linux:8firefox0:91.11.0-2.el8_6RLSA-2022:5469
Rocky Linux:8thunderbird0:91.11.0-2.el8_6RLSA-2022:5470
Ubuntu:22.04:LTSmozjs78no fix listedUBUNTU-CVE-2022-34484
Ubuntu:22.04:LTSmozjs91no fix listedUBUNTU-CVE-2022-34484
Ubuntu:22.04:LTSthunderbird1:91.11.0+build2-0ubuntu0.22.04.1UBUNTU-CVE-2022-34484
Ubuntu:22.04:LTSthunderbird1:91.11.0+build2-0ubuntu0.22.04.1USN-5512-1

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 102
Mozilla Firefox ESR unspecified – before 91.11
Mozilla Thunderbird unspecified – before 102unspecified – before 91.11

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References