Joined: 13 Jun 2003
Location: Barcelona, Spain
|Posted: Thu Jul 22, 2004 6:37 pm Post subject: [ GLSA 200407-18 ] mod_ssl: Format string vulnerability
|Gentoo Linux Security Advisory
Title: mod_ssl: Format string vulnerability (GLSA 200407-18)
Date: July 22, 2004
A bug in mod_ssl may allow a remote attacker to execute arbitrary code when Apache is configured to use mod_ssl and mod_proxy.
mod_ssl provides Secure Sockets Layer encryption and authentication to Apache 1.3.
Vulnerable: <= 2.8.18
Unaffected: >= 2.8.19
Architectures: All supported architectures
A bug in ssl_engine_ext.c makes mod_ssl vulnerable to a ssl_log() related format string vulnerability in the mod_proxy hook functions.
Given the right server configuration, an attacker could execute code as the user running Apache, usually "apache".
A server should not be vulnerable if it is not using both mod_ssl and mod_proxy. Otherwise there is no workaround other than to disable mod_ssl.
All mod_ssl users should upgrade to the latest version:
|# emerge sync
# emerge -pv ">=net-www/mod_ssl-2.8.19"
# emerge ">=net-www/mod_ssl-2.8.19"
Last edited by GLSA on Sun May 07, 2006 4:51 pm; edited 1 time in total