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Security Advisory apache, mod_ssl security update

Advisory: RHSA-2004:600-12
Type: Security Advisory
Severity: Moderate
Issued on: 2004-12-13
Last updated on: 2004-12-13
Affected Products: Red Hat Enterprise Linux AS (v. 2.1)
Red Hat Enterprise Linux ES (v. 2.1)
Red Hat Enterprise Linux WS (v. 2.1)
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor
CVEs (cve.mitre.org): CVE-2003-0987
CVE-2004-0885
CVE-2004-0940

Details

Updated apache and mod_ssl packages that fix various minor security issues
and bugs in the Apache Web server are now available for Red Hat Enterprise
Linux 2.1.

The Apache HTTP Server is a powerful, full-featured, efficient, and
freely-available Web server. The mod_ssl module provides strong
cryptography for the Apache Web server via the Secure Sockets Layer (SSL)
and Transport Layer Security (TLS) protocols.

A buffer overflow was discovered in the mod_include module. This flaw
could allow a local user who is authorized to create server-side include
(SSI) files to gain the privileges of a httpd child (user 'apache'). The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0940 to this issue.

The mod_digest module does not properly verify the nonce of a client
response by using a AuthNonce secret. This could allow a malicious user who
is able to sniff network traffic to conduct a replay attack against a
website using Digest protection. Note that mod_digest implements an older
version of the MD5 Digest Authentication specification, which is known not
to work with modern browsers. This issue does not affect mod_auth_digest.
(CAN-2003-0987).

An issue has been discovered in the mod_ssl module when configured to use
the "SSLCipherSuite" directive in a directory or location context. If a
particular location context has been configured to require a specific set
of cipher suites, then a client is able to access that location using
any cipher suite allowed by the virtual host configuration. (CAN-2004-0885).

Several bugs in mod_ssl were also discovered, including:

- memory leaks in SSL variable handling

- possible crashes in the dbm and shmht session caches

Red Hat Enterprise Linux 2.1 users of the Apache HTTP Server should upgrade
to these erratum packages, which contains Apache version 1.3.27 with
backported patches correcting these issues.


Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

Updated packages

Red Hat Enterprise Linux AS (v. 2.1)

IA-32:
apache-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: 66d324070e1da4bd12d85ae3dec757c6
apache-devel-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: b18ee6322e54c318ea8dadbd2e9daf5a
apache-manual-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: 9870a429161d6e023ed6cbf15d63d37c
mod_ssl-2.8.12-7.i386.rpm
File outdated by:  RHSA-2005:773
    MD5: 0f4fd06fa3a1e53ed59462514a4e9756
 
IA-64:
apache-1.3.27-9.ent.ia64.rpm
File outdated by:  RHSA-2008:0004
    MD5: 5605186178e4162ebc88f9b1f44481ab
apache-devel-1.3.27-9.ent.ia64.rpm
File outdated by:  RHSA-2008:0004
    MD5: 63bf0814fca717f6c47ee9cc24cc6e75
apache-manual-1.3.27-9.ent.ia64.rpm
File outdated by:  RHSA-2008:0004
    MD5: 3b537044378bc27844281897cb4b764d
mod_ssl-2.8.12-7.ia64.rpm
File outdated by:  RHSA-2005:773
    MD5: aa9a679d0ababfedc0e3916eae197be2
 
Red Hat Enterprise Linux ES (v. 2.1)

IA-32:
apache-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: 66d324070e1da4bd12d85ae3dec757c6
apache-devel-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: b18ee6322e54c318ea8dadbd2e9daf5a
apache-manual-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: 9870a429161d6e023ed6cbf15d63d37c
mod_ssl-2.8.12-7.i386.rpm
File outdated by:  RHSA-2005:773
    MD5: 0f4fd06fa3a1e53ed59462514a4e9756
 
Red Hat Enterprise Linux WS (v. 2.1)

IA-32:
apache-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: 66d324070e1da4bd12d85ae3dec757c6
apache-devel-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: b18ee6322e54c318ea8dadbd2e9daf5a
apache-manual-1.3.27-9.ent.i386.rpm
File outdated by:  RHSA-2008:0004
    MD5: 9870a429161d6e023ed6cbf15d63d37c
mod_ssl-2.8.12-7.i386.rpm
File outdated by:  RHSA-2005:773
    MD5: 0f4fd06fa3a1e53ed59462514a4e9756
 
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor

IA-64:
apache-1.3.27-9.ent.ia64.rpm
File outdated by:  RHSA-2008:0004
    MD5: 5605186178e4162ebc88f9b1f44481ab
apache-devel-1.3.27-9.ent.ia64.rpm
File outdated by:  RHSA-2008:0004
    MD5: 63bf0814fca717f6c47ee9cc24cc6e75
apache-manual-1.3.27-9.ent.ia64.rpm
File outdated by:  RHSA-2008:0004
    MD5: 3b537044378bc27844281897cb4b764d
mod_ssl-2.8.12-7.ia64.rpm
File outdated by:  RHSA-2005:773
    MD5: aa9a679d0ababfedc0e3916eae197be2
 

Bugs fixed (see bugzilla for more information)

131360 - RHEL 2.1 mod_ssl missing shmht fixes
134826 - CAN-2004-0885 SSLCipherSuite bypass
137417 - CAN-2004-0940 mod_include local escalation
137419 - CAN-2003-0987 mod_digest nonce checking flaw


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/