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[ GLSA 200407-18 ] mod_ssl: Format string vulnerability
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GLSA
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Joined: 13 Jun 2003
Posts: 4079
Location: Dresden, Germany

PostPosted: Thu Jul 22, 2004 6:37 pm    Post subject: [ GLSA 200407-18 ] mod_ssl: Format string vulnerability Reply with quote

Gentoo Linux Security Advisory

Title: mod_ssl: Format string vulnerability (GLSA 200407-18)
Severity: normal
Exploitable: remote
Date: July 22, 2004
Bug(s): #57379
ID: 200407-18

Synopsis

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.

Background

mod_ssl provides Secure Sockets Layer encryption and authentication to Apache 1.3.

Affected Packages

Package: net-www/mod_ssl
Vulnerable: <= 2.8.18
Unaffected: >= 2.8.19
Architectures: All supported architectures


Description

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.

Impact

Given the right server configuration, an attacker could execute code as the user running Apache, usually "apache".

Workaround

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.

Resolution

All mod_ssl users should upgrade to the latest version:
Code:
# emerge sync
# emerge -pv ">=net-www/mod_ssl-2.8.19"
# emerge ">=net-www/mod_ssl-2.8.19"


References

mod_ssl Announcement


Last edited by GLSA on Sun May 07, 2006 4:51 pm; edited 1 time in total
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