vulnerability
Alma Linux: CVE-2023-4583: Important: firefox security update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:C/A:N) | Sep 4, 2023 | Sep 7, 2023 | Mar 31, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:C/A:N)
Published
Sep 4, 2023
Added
Sep 7, 2023
Modified
Mar 31, 2026
Description
When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Solutions
alma-upgrade-firefoxalma-upgrade-firefox-x11alma-upgrade-thunderbird
References
- CVE-2023-4583
- https://attackerkb.com/topics/CVE-2023-4583
- CWE-754
- EUVD-EUVD-2023-54437
- https://errata.almalinux.org/8/ALSA-2023-4952.html
- https://errata.almalinux.org/8/ALSA-2023-4954.html
- https://errata.almalinux.org/9/ALSA-2023-4955.html
- https://errata.almalinux.org/9/ALSA-2023-4958.html
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-54437
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.