Firefox regressions

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• firefox - Mozilla Open Source web browser

Details

USN-5954-1 fixed vulnerabilities in Firefox. The update introduced
several minor regressions. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2023-25750,
CVE-2023-25752, CVE-2023-28162, CVE-2023-28176, CVE-2023-28177)

Lukas Bernhard discovered that Firefox did not properly manage memory
when invalidating JIT code while following an iterator. An attacker could
potentially exploits this issue to cause a denial of service.
(CVE-2023-25751)

Rob Wu discovered that Firefox did not properly manage the URLs when
following a redirect to a publicly accessible web extension file. An
attacker could potentially exploits this to obtain sensitive information.
(CVE-2023-28160)

Luan Herrera discovered that Firefox did not properly manage cross-origin
iframe when dragging a URL. An attacker could potentially exploit this
issue to perform spoofing attacks. (CVE-2023-28164)

Khiem Tran discovered that Firefox did not properly manage one-time
permissions granted to a document loaded using a file: URL. An attacker
could potentially exploit this issue to use granted one-time permissions
on the local files came from different sources. (CVE-2023-28161)