SB2022110401 - Denial of service in Mozilla NSS
Published: November 4, 2022
Security Bulletin ID
SB2022110401
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2022-3479)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the NSS_GetClientAuthData() function in /lib/ssl/authcert.c when accessing gnutls server without a user certificate in the database. A remote attacker can trigger a stack-based buffer overflow and crash the application using the affected library.
Remediation
Install update from vendor's website.