Information disclosure in Mozilla Firefox - CVE-2022-26382

Vulnerability identifier: #VU61106

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-26382

CWE-ID: CWE-200

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an error in the Autofill tooltips implementation when the text is rendered using page fonts. A remote attacker can obtain potentially sensitive information via a side-channel attack.

Mozilla Firefox
Gentoo Linux
Ubuntu
firefox (Ubuntu package)

Install updates from vendor's website.

Mozilla Firefox - update to 98.0
firefox (Ubuntu package) - addressed in versions 98.0+build3-0ubuntu0.18.04.2, 98.0+build3-0ubuntu0.20.04.2, 98.0+build3-0ubuntu0.21.10.2, 98.0.1+build2-0ubuntu0.18.04.1, 98.0.1+build2-0ubuntu0.20.04.1, 98.0.1+build2-0ubuntu0.21.10.1, 98.0.2+build1-0ubuntu0.18.04.1, 98.0.2+build1-0ubuntu0.20.04.1, 98.0.2+build1-0ubuntu0.21.10.1

• https://www.mozilla.org/en-US/security/advisories/mfsa2022-10/

• Multiple vulnerabilities in Mozilla Firefox and Firefox ESR
• Ubuntu update for firefox
• Ubuntu update for firefox
• Ubuntu update for firefox
• Gentoo update for Mozilla Firefox