[RHSA-2005:816-00] Important: apache, mod_ssl, php update for Stronghold
bugzilla at redhat.com
bugzilla at redhat.com
Wed Nov 2 09:27:17 UTC 2005
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Red Hat Security Advisory
Synopsis: Important: apache, mod_ssl, php update for Stronghold
Advisory ID: RHSA-2005:816-00
Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-816.html
Issue date: 2005-11-02
Updated on: 2005-11-02
Product: Stronghold 4.0 for Red Hat Enterprise Linux
CVE Names: CVE-2003-0542 CVE-2003-0987 CVE-2004-0488 CVE-2004-0594 CVE-2004-0595 CVE-2004-0885 CVE-2004-0940 CVE-2004-1018 CVE-2004-1019 CVE-2005-2700
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1. Summary:
Updated versions of the Apache HTTP server, PHP, and mod_ssl are now
available for Stronghold 4.0 for Enterprise Linux.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Stronghold 4.0 for Red Hat Enterprise Linux AS (version 2.1) - i386
3. Problem description:
Several security issues have been found in various packages in Stronghold
4.0:
A flaw in the strip_tags function in PHP, commonly used by PHP scripts to
prevent cross-site scripting attacks by removing HTML tags from
user-supplied form data. HTML tags can, in some cases, be passed intact
through the strip_tags function, which may allow a cross-site scripting
attack. (CVE-2004-0595)
A flaw if the memory_limit configuration setting is enabled in PHP. If a
remote attacker could force the PHP interpreter to allocate more memory
than the memory_limit setting before script execution begins, then the
attacker may be able to supply the contents of a PHP hash table remotely.
This hash table could then be used to execute arbitrary code in the context
of the server. (CVE-2004-0594)
Various flaws, including possible information disclosure, double free, and
negative reference index array underflow in the deserialization code of
PHP. PHP applications may use the unserialize function on untrusted user
data, which could allow a remote attacker to gain access to memory or
potentially execute arbitrary code. (CVE-2004-1019)
Flaws in shmop_write, pack, and unpack PHP functions. These functions are
not normally passed user-supplied data, so would require a malicious PHP
script to be exploited. (CVE-2004-1018)
A stack buffer overflow in mod_ssl. If FakeBasicAuth had been enabled, a
carefully crafted client certificate sent to mod_ssl can cause a stack
overflow. In order to exploit this issue, the malicious certificate would
have to be signed by a Certificate Authority which mod_ssl is configured to
trust. (CVE-2004-0488)
The mod_ssl module, when using the "SSLCipherSuite" directive in directory
or location context, allowed remote clients to bypass intended restrictions
by using any cipher suite that is allowed by the virtual host
configuration. (CVE-2004-0885)
A flaw in mod_ssl triggered if a virtual host was configured using
"SSLVerifyClient optional" and a directive "SSLVerifyClient required" is
set for a specific location. For servers configured in this fashion, an
attacker may be able to access resources that should otherwise be
protected. (CVE-2005-2700)
A flaw in the handling of regular expressions from configuration files
in the Apache HTTP Server could lead to a buffer overflow. To exploit this
issue, an attacker would need to have the ability to write to Apache
configuration files such as .htaccess or httpd.conf. (CVE-2003-0542)
mod_digest did 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. (CVE-2003-0987)
A buffer overflow in the get_tag function in mod_include allowed local
users who can create SSI documents to execute arbitrary code as the apache
user via SSI (XSSI) documents that trigger a length calculation error.
(CVE-2004-0940)
Users of Stronghold are advised to upgrade to these updated packages, which
contain backported patches to correct 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/):
171694 - CVE-2003-0542 multiple flaws in Apache (CVE-2003-0542, CVE-2003-0987, CVE-2004-0940)
171695 - CVE-2004-0595 PHP flaws (CVE-2004-0594 CVE-2004-1018 CVE-2004-1019)
171696 - CVE-2004-0488 mod_ssl flaws (CVE-2004-0885 CVE-2005-2700)
6. RPMs required:
Stronghold 4.0 for Red Hat Enterprise Linux AS (version 2.1):
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/stronghold-apache-1.3.22-25.src.rpm
049c475bd0b56ee035ac2bddf0969012 stronghold-apache-1.3.22-25.src.rpm
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/stronghold-mod_ssl-2.8.7-9.src.rpm
636c0ab5f8223ecebfed31a8584e72fd stronghold-mod_ssl-2.8.7-9.src.rpm
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/stronghold-php-4.1.2-7.src.rpm
0c10caf1d418bbe5592deaa141b73ce1 stronghold-php-4.1.2-7.src.rpm
i386:
1187ef428a5b37098221bb513799124a stronghold-apache-1.3.22-25.i386.rpm
8f5ec71681a13733ab62bdfb6370aba3 stronghold-apache-devel-1.3.22-25.i386.rpm
8c31c5a669fdcded626528dca434c060 stronghold-apache-manual-1.3.22-25.i386.rpm
ae2bdc1b65627517fb03f43324916953 stronghold-mod_ssl-2.8.7-9.i386.rpm
ab7ba645fbf0707c499f104dfb78d5fe stronghold-php-4.1.2-7.i386.rpm
db92030b3686e49fe8f48f60d3f355e2 stronghold-php-devel-4.1.2-7.i386.rpm
7754d68472de62bf627dee6d12fb37f5 stronghold-php-imap-4.1.2-7.i386.rpm
a8c61ddb232201f177d6bbb1c2a6724e stronghold-php-ldap-4.1.2-7.i386.rpm
1ca0abc9dda0dd09acf7d78ef12c6d51 stronghold-php-manual-4.1.2-7.i386.rpm
bd1e2d3fe7c632daae55eb6d1bb7af4e stronghold-php-mysql-4.1.2-7.i386.rpm
7a9583334c7704c2d1b4bf98e53e9906 stronghold-php-odbc-4.1.2-7.i386.rpm
cb714a12f38ca1625acfccceaeaffb74 stronghold-php-pgsql-4.1.2-7.i386.rpm
abe38bfae15d2d747a90f774ab2bdc7e stronghold-php-snmp-4.1.2-7.i386.rpm
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
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0542
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0987
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0488
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0594
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0595
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0885
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0940
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1018
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1019
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2700
8. Contact:
The Red Hat security contact is <secalert at redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2005 Red Hat, Inc.
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