Date: Tue, 2 Jul 2002 10:01:57 -0400 (EDT)
From: EnGarde Secure Linux <[email protected]>
To: [email protected], [email protected]Subject: [ESA-20020702-017] off-by-one in mod_ssl's configuration directive handling
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| EnGarde Secure Linux Security Advisory July 02, 2002 |
| http://www.engardelinux.org/ ESA-20020702-017 |
| |
| Package: mod_ssl |
| Summary: off-by-one in mod_ssl's configuration directive handling |
+------------------------------------------------------------------------+
EnGarde Secure Linux is a secure distribution of Linux that features
improved access control, host and network intrusion detection, Web
based secure remote management, complete e-commerce using AllCommerce,
and integrated open source security tools.
OVERVIEW
- --------
Frank Denis ([email protected]) discovered an off-by-one error in mod_ssl's
handling of older configuration directives (the rewrite_command hook).
As such a malicious user, using a specially-crafted .htaccess file, may
be able to DoS the child (Apache) processes or execute arbitrary
commands as the webd user.
This update upgrades mod_ssl to 2.8.10, fixing this problem and other
bugs.
SOLUTION
- --------
Users of the EnGarde Professional edition can use the Guardian Digital
Secure Network to update their systems automatically.
EnGarde Community users should upgrade to the most recent version
as outlined in this advisory. Updates may be obtained from:
ftp://ftp.engardelinux.org/pub/engarde/stable/updates/http://ftp.engardelinux.org/pub/engarde/stable/updates/
Before upgrading the package, the machine must either:
a) be booted into a "standard" kernel; or
b) have LIDS disabled.
To disable LIDS, execute the command:
# /sbin/lidsadm -S -- -LIDS_GLOBAL
To install the updated package, execute the command:
# rpm -Uvh files
You must now update the LIDS configuration by executing the command:
# /usr/sbin/config_lids.pl
To re-enable LIDS (if it was disabled), execute the command:
# /sbin/lidsadm -S -- +LIDS_GLOBAL
To verify the signatures of the updated packages, execute the command:
# rpm -Kv files
UPDATED PACKAGES
- ----------------
These updated packages are for EnGarde Secure Linux Community
Edition.
Source Packages:
SRPMS/apache-1.3.26-1.0.31.src.rpm
MD5 Sum: 2deec12206289498b8199e6ad89b19ec
Binary Packages:
i386/apache-1.3.26-1.0.31.i386.rpm
MD5 Sum: f0f56d536c6133c25291cc11dec602a9
i686/apache-1.3.26-1.0.31.i686.rpm
MD5 Sum: 32fb239c93491476a8f172f1526c9159
REFERENCES
- ----------
Guardian Digital's public key:
http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY
mod_ssl's Official Web Site:
http://www.modssl.org/
Security Contact: [email protected]
EnGarde Advisories: http://www.engardelinux.org/advisories.html
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$Id: ESA-20020702-017-apache,v 1.2 2002/07/02 14:01:17 rwm Exp $
- --------------------------------------------------------------------------
Author: Ryan W. Maple <[email protected]>
Copyright 2002, Guardian Digital, Inc.
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