Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. 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 ESR < 78.14, Thunderbird < 78.14, and Firefox < 92.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2756-1 firefox-esr security update
Debian DLA Debian DLA DLA-2757-1 thunderbird security update
Debian DSA Debian DSA DSA-4969-1 firefox-esr security update
Debian DSA Debian DSA DSA-4973-1 thunderbird security update
EUVD EUVD EUVD-2021-24945 Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. 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 ESR < 78.14, Thunderbird < 78.14, and Firefox < 92.
Ubuntu USN Ubuntu USN USN-5074-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5146-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-04T01:44:22.825Z

Reserved: 2021-08-10T00:00:00

Link: CVE-2021-38493

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-11-03T01:15:07.247

Modified: 2024-11-21T06:17:14.280

Link: CVE-2021-38493

cve-icon Redhat

Severity : Important

Publid Date: 2021-09-07T00:00:00Z

Links: CVE-2021-38493 - Bugzilla

cve-icon OpenCVE Enrichment

No data.