PT-2022-1403 · Mozilla+10 · Thunderbird+12
Tavis Ormandy
·
Published
2022-01-11
·
Updated
2025-06-06
·
CVE-2022-22747
CVSS v3.1
6.5
Medium
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Firefox ESR versions prior to 91.5
Firefox versions prior to 96
Thunderbird versions prior to 91.5
Description
The issue is related to the incorrect handling of an empty pkcs7 sequence in certificate data. This could lead to a crash when handling an untrusted certificate, potentially allowing a remote attacker to cause a denial-of-service (DoS) condition by sending a specially crafted certificate. It is believed that this crash is not exploitable for more severe attacks.
Recommendations
For Firefox ESR versions prior to 91.5, update to version 91.5 or later.
For Firefox versions prior to 96, update to version 96 or later.
For Thunderbird versions prior to 91.5, update to version 91.5 or later.
Exploit
Fix
RCE
Improper Certificate Validation
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Firefox
Firefox Esr
Linuxmint
Red Hat
Red Os
Rocky Linux
Suse
Thunderbird
Ubuntu