CVE-2022-34476

CRITICAL

Firefox < 102.0 - ASN.1 Parsing Vulnerability via Malformed Indefinite SEQUENCE

Title source: llm
STIX 2.1

Description

ASN.1 parsing of an indefinite SEQUENCE inside an indefinite GROUP could have resulted in the parser accepting malformed ASN.1. This vulnerability affects Firefox < 102.

References (2)

Core 2
Core References
Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1387919

Scores

CVSS v3 9.8
EPSS 0.0059
EPSS Percentile 69.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-20
Status published
Products (1)
mozilla/firefox < 102.0
Published Dec 22, 2022
Tracked Since Feb 18, 2026