Type conversion in Mozilla Firefox - CVE-2023-25736

Vulnerability identifier: #VU72261

CSH Severity: Low

CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-25736

CWE-ID: CWE-704

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an invalid downcast from nsHTMLDocument to nsIContent in GetTableSelectionMode. A remote attacker can crash the browser.

Mozilla Firefox
Ubuntu
openEuler
Firefox for Android
Firefox Focus for Android
firefox (Ubuntu package)
firefox
firefox-debuginfo
firefox-debugsource

Install updates from vendor's website.

Mozilla Firefox - update to 110.0
Firefox for Android - update to 110.0
Firefox Focus for Android - update to 110.0.1
firefox (Ubuntu package) - addressed in versions 110.0+build3-0ubuntu0.18.04.1, 110.0+build3-0ubuntu0.20.04.1, 110.0.1+build2-0ubuntu0.18.04.1, 110.0.1+build2-0ubuntu0.20.04.1
firefox - update to 128.8.0-1
firefox-debuginfo - update to 128.8.0-1
firefox-debugsource - update to 128.8.0-1

• https://www.mozilla.org/en-US/security/advisories/mfsa2023-05/

• Multiple vulnerabilities in Mozilla Firefox and Firefox ESR
• Multiple vulnerabilities in Firefox for Android
• Multiple vulnerabilities in Firefox Focus for Android
• Ubuntu update for firefox
• Ubuntu update for firefox
• openEuler 22.03 LTS SP4 update for firefox
• openEuler 22.03 LTS SP3 update for firefox