CVE-2022-31747

Mozilla: Memory safety bugs fixed in Firefox 101 and Firefox ESR 91.10

Published Dec 22, 2022 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox ESR 91.9. 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 Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-3040-1 firefox-esr security update
Debian DLA Debian DLA DLA-3041-1 thunderbird security update
Debian DSA Debian DSA DSA-5156-1 firefox-esr security update
Debian DSA Debian DSA DSA-5158-1 thunderbird security update
EUVD EUVD EUVD-2022-53145 Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox ESR 91.9. 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 Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
Ubuntu USN Ubuntu USN USN-5475-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5512-1 Thunderbird vulnerabilities
History
Type Values Removed Values Added
Weaknesses CWE-119
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Apr 15, 2025, 6:22 PM
Reserved
May 26, 2022, 12:00 AM
Status
Modified
Published
Dec 22, 2022, 8:15 PM
Modified
Jun 17, 2026, 4:46 AM
Severity
Important
Public date
May 31, 2022, 12:00 AM