What’s Vulnerable › Vulnerabilities

CVE-2015-2091

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-03-13 · updated 2026-06-17
• Weakness: CWE-310

Description

The authentication hook (mgs_hook_authz) in mod-gnutls 0.5.10 and earlier does not validate client certificates when "GnuTLSClientVerify require" is set, which allows remote attackers to spoof clients via a crafted certificate.

Affected products

• Apache Mod-Gnutls: through 0.5.1

References

• http://issues.outoforder.cc/view.php?id=93
• http://www.debian.org/security/2015/dsa-3177
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578663
• https://security.gentoo.org/glsa/201709-04
• http://issues.outoforder.cc/view.php?id=93
• http://www.debian.org/security/2015/dsa-3177
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578663
• https://security.gentoo.org/glsa/201709-04

Get alerted when CVE-2015-2091 or the next vulnerability affects your stack