vulnerability
Oracle Linux: CVE-2021-23960: ELSA-2021-0288: firefox security update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Jan 26, 2021 | Jan 28, 2021 | Dec 3, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Jan 26, 2021
Added
Jan 28, 2021
Modified
Dec 3, 2025
Description
Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
The Mozilla Foundation Security Advisory describes this flaw as:
Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash.
The Mozilla Foundation Security Advisory describes this flaw as:
Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash.
Solutions
oracle-linux-upgrade-firefoxoracle-linux-upgrade-thunderbird
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