SB2023020675 - Red Hat Enterprise Linux 8.4 Extended Update Support update for thunderbird
Published: February 6, 2023
Security Bulletin ID
SB2023020675
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2023-0430)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to application does not check certificate OCSP revocation status when verifying S/Mime signatures. A remote attacker can sign their emails with a revoked certificate and they will be displayed as having a valid signature.
Remediation
Install update from vendor's website.