vulnerability
Arch Linux: Arbitrary code execution (CVE-2021-23995)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:H/Au:N/C:P/I:P/A:P) | Jun 24, 2021 | Jul 11, 2025 | Nov 27, 2025 |
Severity
5
CVSS
(AV:N/AC:H/Au:N/C:P/I:P/A:P)
Published
Jun 24, 2021
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A security issue has been found in Firefox before version 88 and Thunderbird before version 78.10. When Responsive Design Mode was enabled, it used references to objects that were previously freed. Mozilla presumes that with enough effort this could have been exploited to run arbitrary code.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-23995
- https://attackerkb.com/topics/CVE-2021-23995
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1699835
- URL-https://security.archlinux.org/ASA-202104-3
- URL-https://security.archlinux.org/ASA-202104-4
- URL-https://www.mozilla.org/security/advisories/mfsa2021-14/
- URL-https://www.mozilla.org/security/advisories/mfsa2021-15/
- URL-https://www.mozilla.org/security/advisories/mfsa2021-16/
- CWE-672
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