During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2782-1 | firefox-esr security update |
Debian DLA |
DLA-2874-1 | thunderbird security update |
Debian DSA |
DSA-4981-1 | firefox-esr security update |
Debian DSA |
DSA-5034-1 | thunderbird security update |
EUVD |
EUVD-2021-24948 | During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. |
Ubuntu USN |
USN-5107-1 | Firefox vulnerabilities |
Ubuntu USN |
USN-5132-1 | Thunderbird vulnerabilities |
Ubuntu USN |
USN-5248-1 | Thunderbird vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
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Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2024-08-04T01:44:23.406Z
Reserved: 2021-08-10T00:00:00
Link: CVE-2021-38496
No data.
Status : Modified
Published: 2021-11-03T01:15:07.380
Modified: 2024-11-21T06:17:14.707
Link: CVE-2021-38496
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Ubuntu USN