Input validation error in Mozilla Firefox - CVE-2022-34476

Vulnerability identifier: #VU64755

CSH Severity: Medium

CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-34476

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to insufficient validation of an indefinite SEQUENCE inside an indefinite GROUP when parsing ASN.1. A remote attacker can trick the browser into accessing a malformed ASN.1 and perform spoofing attack.

Mozilla Firefox
Pale Moon
Gentoo Linux
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Enterprise Storage
SUSE Linux Enterprise Storage
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Desktop
openSUSE Leap
Ubuntu
firefox (Ubuntu package)
MozillaFirefox-devel
MozillaFirefox-translations-common
MozillaFirefox-debugsource
MozillaFirefox-debuginfo
MozillaFirefox
MozillaFirefox-translations-other
MozillaFirefox-branding-upstream
MozillaFirefox-branding-SLE

Install updates from vendor's website.

Mozilla Firefox - update to 102.0
Pale Moon - update to 31.1.1
firefox (Ubuntu package) - addressed in versions 102.0+build2-0ubuntu0.18.04.1, 102.0+build2-0ubuntu0.20.04.1, 102.0+build2-0ubuntu0.21.10.1
MozillaFirefox-devel - addressed in versions 102.2.0-112.130.1, 102.2.0-150000.150.56.1, 102.3.0-150200.152.61.1
MozillaFirefox-translations-common - addressed in versions 102.2.0-112.130.1, 102.2.0-150000.150.56.1, 102.3.0-150200.152.61.1
MozillaFirefox-debugsource - addressed in versions 102.2.0-112.130.1, 102.2.0-150000.150.56.1, 102.3.0-150200.152.61.1
MozillaFirefox-debuginfo - addressed in versions 102.2.0-112.130.1, 102.2.0-150000.150.56.1, 102.3.0-150200.152.61.1
MozillaFirefox - addressed in versions 102.2.0-112.130.1, 102.2.0-150000.150.56.1, 102.3.0-150200.152.61.1
MozillaFirefox-translations-other - addressed in versions 102.2.0-150000.150.56.1, 102.3.0-150200.152.61.1
MozillaFirefox-branding-upstream - update to 102.3.0-150200.152.61.1
MozillaFirefox-branding-SLE - addressed in versions 102-35.9.1, 102-150000.4.22.1, 102-150200.9.10.1

• https://www.mozilla.org/en-US/security/advisories/mfsa2022-24/

• Multiple vulnerabilities in Mozilla Firefox
• Ubuntu update for firefox
• Gentoo update for Mozilla Firefox
• SUSE update for MozillaFirefox
• SUSE update for MozillaFirefox
• SUSE update for MozillaFirefox
• Multiple vulnerabilities in Pale Moon