New! Vulnerability Priority Rating (VPR)
Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.
VPR Score: 5.9
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200509-12 (Apache, mod_ssl: Multiple vulnerabilities)
mod_ssl contains a security issue when 'SSLVerifyClient optional' is configured in the global virtual host configuration (CAN-2005-2700).
Also, Apache's httpd includes a PCRE library, which makes it vulnerable to an integer overflow (CAN-2005-2491).
Under a specific configuration, mod_ssl does not properly enforce the client-based certificate authentication directive, 'SSLVerifyClient require', in a per-location context, which could be potentially used by a remote attacker to bypass some restrictions. By creating a specially crafted '.htaccess' file, a local attacker could possibly exploit Apache's vulnerability, which would result in a local privilege escalation.
There is no known workaround at this time.
SolutionAll mod_ssl users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-www/mod_ssl-2.8.24' All Apache 2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=www-servers/apache-2.0.54-r15'