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AUSCERT External Security Bulletin Redistribution
ESB-2004.0231 -- RHSA-2004:084-01
Updated httpd packages fix mod_ssl security issue
24 March 2004
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: mod_ssl
Apache HTTP Server prior to version 2.0.49
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux AS version 3
Red Hat Enterprise Linux ES version 3
Red Hat Enterprise Linux WS version 3
Linux
UNIX
Impact: Denial of Service
Access Required: Remote
CVE Names: CAN-2004-0113
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Red Hat Security Advisory
Synopsis: Updated httpd packages fix mod_ssl security issue
Advisory ID: RHSA-2004:084-01
Issue date: 2004-03-23
Updated on: 2004-03-23
Product: Red Hat Enterprise Linux
Keywords: Apache httpd DoS SSL
Cross references:
Obsoletes:
CVE Names: CAN-2004-0113
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1. Topic:
Updated httpd packages are now available that fix a denial of service
vulnerability in mod_ssl and include various other bug fixes.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, ppc64, s390, s390x, x86_64
Red Hat Enterprise Linux ES version 3 - i386
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
3. Problem description:
The Apache HTTP server is a powerful, full-featured, efficient, and
freely-available Web server.
A memory leak in mod_ssl in the Apache HTTP Server prior to version 2.0.49
allows a remote denial of service attack against an SSL-enabled server. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0113 to this issue.
This update also includes various bug fixes, including:
- - - improvements to the mod_expires, mod_dav, mod_ssl and mod_proxy modules
- - - a fix for a bug causing core dumps during configuration parsing on the
IA64 platform
- - - an updated version of mod_include fixing several edge cases in the SSI parser
Additionally, the mod_logio module is now included.
Users of the Apache HTTP server should upgrade to these updated packages,
which contain backported patches that address these issues.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.
Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
112771 - Invalid paths in config_vars.mk crash build of mod_jk
113934 - SRPMS: test for MMN version it too fragile
113929 - mod_expires headers not set when used in conjunction with mod_proxy
115328 - Satisfy keyword in httpd.conf causes apache to segfault on load
115379 - pcre conflict between httpd and php
117280 - CAN-2004-0113 mod_ssl Denial of Service attack
6. RPMs required:
Red Hat Enterprise Linux AS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/httpd-2.0.46-32.ent.src.rpm
i386:
Available from Red Hat Network: httpd-2.0.46-32.ent.i386.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.i386.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.i386.rpm
ia64:
Available from Red Hat Network: httpd-2.0.46-32.ent.ia64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.ia64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.ia64.rpm
ppc:
Available from Red Hat Network: httpd-2.0.46-32.ent.ppc.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.ppc.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.ppc.rpm
ppc64:
Available from Red Hat Network: httpd-2.0.46-32.ent.ppc64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.ppc64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.ppc64.rpm
s390:
Available from Red Hat Network: httpd-2.0.46-32.ent.s390.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.s390.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.s390.rpm
s390x:
Available from Red Hat Network: httpd-2.0.46-32.ent.s390x.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.s390x.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.s390x.rpm
x86_64:
Available from Red Hat Network: httpd-2.0.46-32.ent.x86_64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.x86_64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/httpd-2.0.46-32.ent.src.rpm
i386:
Available from Red Hat Network: httpd-2.0.46-32.ent.i386.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.i386.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.i386.rpm
Red Hat Enterprise Linux WS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/httpd-2.0.46-32.ent.src.rpm
i386:
Available from Red Hat Network: httpd-2.0.46-32.ent.i386.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.i386.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.i386.rpm
ia64:
Available from Red Hat Network: httpd-2.0.46-32.ent.ia64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.ia64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.ia64.rpm
x86_64:
Available from Red Hat Network: httpd-2.0.46-32.ent.x86_64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-32.ent.x86_64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-32.ent.x86_64.rpm
7. Verificationx:
MD5 sum Package Name
- - --------------------------------------------------------------------------
0578bb679d25664d60a396216751c52b 3AS/en/os/SRPMS/httpd-2.0.46-32.ent.src.rpm
a4e26276faa96ae744b8584dfca9d0a8 3AS/en/os/i386/httpd-2.0.46-32.ent.i386.rpm
f16f311cb4a04b0eebfc0fb05841f4b1 3AS/en/os/i386/httpd-devel-2.0.46-32.ent.i386.rpm
c83676811d1ad92f94332defca06562d 3AS/en/os/i386/mod_ssl-2.0.46-32.ent.i386.rpm
88f10b3263638bad5f25d8e2f466f577 3AS/en/os/ia64/httpd-2.0.46-32.ent.ia64.rpm
1f64367942fe38a883716f907aafdd2e 3AS/en/os/ia64/httpd-devel-2.0.46-32.ent.ia64.rpm
fc2b50541e485d2b8c67c3ddc28596ab 3AS/en/os/ia64/mod_ssl-2.0.46-32.ent.ia64.rpm
e5784963d08a8f2a1b1c2ebca88b495a 3AS/en/os/ppc/httpd-2.0.46-32.ent.ppc.rpm
7f0c9424b7f5cda0a021cf3fb0f5dd80 3AS/en/os/ppc/httpd-devel-2.0.46-32.ent.ppc.rpm
bb809b4751b8d1bcdbfba8402b79de75 3AS/en/os/ppc/mod_ssl-2.0.46-32.ent.ppc.rpm
6baf583f19a9f90d57e30fe8719c2fed 3AS/en/os/ppc64/httpd-2.0.46-32.ent.ppc64.rpm
e0df7bcb18320e5d5e18f1d15f4e8848 3AS/en/os/ppc64/httpd-devel-2.0.46-32.ent.ppc64.rpm
5cd9bca47c0fd7593d24a23cfdefe492 3AS/en/os/ppc64/mod_ssl-2.0.46-32.ent.ppc64.rpm
d31e82269a2b465b04871ef442fbf2d5 3AS/en/os/s390/httpd-2.0.46-32.ent.s390.rpm
6306426ed7de562c25f431a7f46bd893 3AS/en/os/s390/httpd-devel-2.0.46-32.ent.s390.rpm
5da65fff9b14a7f4d39c9550bafda627 3AS/en/os/s390/mod_ssl-2.0.46-32.ent.s390.rpm
20ffb2d9fbdfdc4b9c31d3568f2db55c 3AS/en/os/s390x/httpd-2.0.46-32.ent.s390x.rpm
20bebf1f27b1dcac4691292bb7689dc2 3AS/en/os/s390x/httpd-devel-2.0.46-32.ent.s390x.rpm
be4e2faaa60b8ecbe22dc79342df1e07 3AS/en/os/s390x/mod_ssl-2.0.46-32.ent.s390x.rpm
c4109535a41be2dbdd7f522f1a70e4a7 3AS/en/os/x86_64/httpd-2.0.46-32.ent.x86_64.rpm
f95dc1f95b509ef64666c232c1758b92 3AS/en/os/x86_64/httpd-devel-2.0.46-32.ent.x86_64.rpm
37dff057ab1b6ddc96488e207c5bbc22 3AS/en/os/x86_64/mod_ssl-2.0.46-32.ent.x86_64.rpm
0578bb679d25664d60a396216751c52b 3ES/en/os/SRPMS/httpd-2.0.46-32.ent.src.rpm
a4e26276faa96ae744b8584dfca9d0a8 3ES/en/os/i386/httpd-2.0.46-32.ent.i386.rpm
f16f311cb4a04b0eebfc0fb05841f4b1 3ES/en/os/i386/httpd-devel-2.0.46-32.ent.i386.rpm
c83676811d1ad92f94332defca06562d 3ES/en/os/i386/mod_ssl-2.0.46-32.ent.i386.rpm
0578bb679d25664d60a396216751c52b 3WS/en/os/SRPMS/httpd-2.0.46-32.ent.src.rpm
a4e26276faa96ae744b8584dfca9d0a8 3WS/en/os/i386/httpd-2.0.46-32.ent.i386.rpm
f16f311cb4a04b0eebfc0fb05841f4b1 3WS/en/os/i386/httpd-devel-2.0.46-32.ent.i386.rpm
c83676811d1ad92f94332defca06562d 3WS/en/os/i386/mod_ssl-2.0.46-32.ent.i386.rpm
88f10b3263638bad5f25d8e2f466f577 3WS/en/os/ia64/httpd-2.0.46-32.ent.ia64.rpm
1f64367942fe38a883716f907aafdd2e 3WS/en/os/ia64/httpd-devel-2.0.46-32.ent.ia64.rpm
fc2b50541e485d2b8c67c3ddc28596ab 3WS/en/os/ia64/mod_ssl-2.0.46-32.ent.ia64.rpm
c4109535a41be2dbdd7f522f1a70e4a7 3WS/en/os/x86_64/httpd-2.0.46-32.ent.x86_64.rpm
f95dc1f95b509ef64666c232c1758b92 3WS/en/os/x86_64/httpd-devel-2.0.46-32.ent.x86_64.rpm
37dff057ab1b6ddc96488e207c5bbc22 3WS/en/os/x86_64/mod_ssl-2.0.46-32.ent.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key is
available from https://www.redhat.com/security/keys.html
You can verify each package with the following command:
rpm --checksig -v <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
md5sum <filename>
8. References:
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=27106
http://www.apacheweek.com/features/security-20
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0113
9. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/solutions/security/news/contact.html
Copyright 2003 Red Hat, Inc.
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