CVE-2021-29989

Mozilla: Memory safety bugs fixed in Thunderbird 78.13

Published Aug 17, 2021 CVSS 3.1 · 8.8 High EPSS 1.3% KEV · Not listed
Description
Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. 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 < 78.13, Firefox ESR < 78.13, and Firefox < 91.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2740-1 firefox-esr security update
Debian DLA Debian DLA DLA-2745-1 thunderbird security update
Debian DSA Debian DSA DSA-4956-1 firefox-esr security update
Debian DSA Debian DSA DSA-4959-1 thunderbird security update
EUVD EUVD EUVD-2021-16448 Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. 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 < 78.13, Firefox ESR < 78.13, and Firefox < 91.
Ubuntu USN Ubuntu USN USN-5037-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5058-1 Thunderbird vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Aug 3, 2024, 10:24 PM
Reserved
Apr 1, 2021, 12:00 AM
Status
Modified
Published
Aug 17, 2021, 8:15 PM
Modified
Jun 17, 2026, 3:48 AM
Severity
Important
Public date
Aug 10, 2021, 12:00 AM