SB2023012484 - SUSE update for mozilla-nss
Published: January 24, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2022-23491)
CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to bypass certificate validation checks.
The vulnerability exists due to presence of the TrustCor certificate in the Root Certificates list. the certificate is removed due to TrustCor's ownership also operated a business that produced spyware. Therefore, any checks that rely on digital signatures of trusted certificates were compromised.
2) 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.