SB2009081201 - Improper Certificate Validation in GnuTLS
Published: August 12, 2009 Updated: April 30, 2026
Security Bulletin ID
SB2009081201
CSH 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 vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2009-2730)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to spoof certificate hostname validation.
The vulnerability exists due to improper certificate validation in certificate hostname validation when verifying certificates. A remote attacker can present a certificate with a mismatched hostname to spoof certificate hostname validation.
Remediation
Install update from vendor's website.