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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Apache: Buffer overflow in mod_ssl
Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200406-05
(Apache: Buffer overflow in mod_ssl)
A bug in the function ssl_util_uuencode_binary in ssl_util.c may lead to a
remote buffer overflow on a server configured to use FakeBasicAuth that
will trust a client certificate with an issuing CA with a subject DN longer
Given the right server configuration, a possible hacker could cause a Denial of
Service or execute code as the user running Apache, usually
"apache". It is thought to be impossible to exploit this to
execute code on the x86 platform, but the possibility for other platforms
is unknown. This does not preclude a DoS on x86 systems.
A server should not be vulnerable if it is not configured to use
FakeBasicAuth and to trust a client CA with a long subject DN.
Apache 1.x users should upgrade to the latest version of mod_ssl:
# emerge sync
# emerge -pv ">=net-www/mod_ssl-2.8.18"
# emerge ">=net-www/mod_ssl-2.8.18"
Apache 2.x users should upgrade to the latest version of Apache:
# emerge sync
# emerge -pv ">=net-www/apache-2.0.49-r3"
# emerge ">=net-www/apache-2.0.49-r3"
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: (C) 2005 Michel Arboi
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