SUSE Linux Advisory: openssl

SUSE Security Announcement

Package: openssl
Announcement-ID: SuSE-SA:2004:007
Date: Wednesday, Mar 17th 2004 13:30 MEST
Affected products: 8.0, 8.1, 8.2, 9.0 SuSE Linux Database Server,
SuSE eMail Server III, 3.1 SuSE Linux Enterprise Server 7, 8 SuSE
Linux Firewall on CD/Admin host SuSE Linux Connectivity Server SuSE
Linux Office Server
Vulnerability Type: remote denial-of-service
Severity (1-10): 4
SUSE default package: yes
Cross References: CAN-2004-0079 CAN-2004-0112

Content of this advisory:

1. security vulnerability resolved:
   • null pointer assignment due to handshake
   • crash with Kerberos cipher-suite support problem description,
     discussion, solution and upgrade information
2. pending vulnerabilities, solutions, workarounds:
   • xf86_glx/xmodules/xloader
   • gnome-session
   • pwlib
   • libxml2
   • mod_python
   • mozilla
   • kernel
   • mailman
   • metamail
   • sysstat
3. standard appendix (further information)

1) problem description, brief discussion, solution, upgrade
information

OpenSSL is an implementation of the Secure Socket Layer (SSL
v2/3) and Transport Layer Security (TLS v1) protocol. The NISCC
informed us about to failure conditions in openssl that can be
triggered to crash applications that use the openssl library.
The first bug occurs during SSL/TLS handshake in the function
do_change_cipher_spec() due to a NULL pointer assignment. The
second bug affects openssl version 0.9.7* only with Kerberos
cipher-suite enabled and can be triggered during SSL/TLS handshake
too.

Please download the update package for your distribution and
verify its integrity by the methods listed in section 3) of this
announcement. Then, install the package using the command “rpm -Fhv
file.rpm” to apply the update.
Our maintenance customers are being notified individually. The
packages are being offered to install from the maintenance web.

There is not other solution known to this problem then updating
to the current version from our FTP servers.

To make this update effective, restart all servers using openssl
please

Intel i386 Platform:

SuSE-9.0:

ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/openssl-0.9.7b-133.i586.rpm
31ec7dd8d5e119ebc0c63b287e4ad3c7

ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/openssl-devel-0.9.7b-133.i586.rpm
952ad40732b95ca7fdd8ba00a94ce99b
patch rpm(s):

ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/openssl-0.9.7b-133.i586.patch.rpm
71d9522ca81e5cec829266f5fd9efb6d

ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/openssl-devel-0.9.7b-133.i586.patch.rpm
40d2d30ff2f2629d02e6e54472b6aca0
source rpm(s):

ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/openssl-0.9.7b-133.src.rpm
3bb291108685b06ac25533014ede039e

SuSE-8.2:

ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/openssl-0.9.6i-21.i586.rpm
21d83138d00c84b0febc2428f1e5ceac

ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/openssl-devel-0.9.6i-21.i586.rpm
421bf9717ff3c7facc8a6ee51438e82c
patch rpm(s):

ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/openssl-0.9.6i-21.i586.patch.rpm
0457b801931f1f6857e3358c4b5a9151

ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/openssl-devel-0.9.6i-21.i586.patch.rpm
4d8561d55cde4d31c840ebd7d10901e1
source rpm(s):

ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/openssl-0.9.6i-21.src.rpm
4a55e2eae1fd8ebcc086fa612d9af95b

SuSE-8.1:

ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/openssl-0.9.6g-114.i586.rpm
53c938f88ed6a5d2ad12120c65ea880f

ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/openssl-devel-0.9.6g-114.i586.rpm
bd6ff0ccaf12c1ce9107accf5f4372b6
patch rpm(s):

ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/openssl-0.9.6g-114.i586.patch.rpm
7782f761018a0b4fb95c955f7c782b6d

ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/openssl-devel-0.9.6g-114.i586.patch.rpm
51df3d52a98175cbe6338cb963140a59
source rpm(s):

ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/openssl-0.9.6g-114.src.rpm
da2f5a9f62126ad0e1659a6f4f78878c

SuSE-8.0:

ftp://ftp.suse.com/pub/suse/i386/update/8.0/sec1/openssl-0.9.6c-87.i386.rpm
f40a9640a6acc1ba9bbd3c2669ecba9d

ftp://ftp.suse.com/pub/suse/i386/update/8.0/d3/openssl-devel-0.9.6c-87.i386.rpm
d19730d5050a0f0fd5cafb348c0c0896
patch rpm(s):

ftp://ftp.suse.com/pub/suse/i386/update/8.0/sec1/openssl-0.9.6c-87.i386.patch.rpm
e81f85173f6108f1e1ce312540fcff48

ftp://ftp.suse.com/pub/suse/i386/update/8.0/d3/openssl-devel-0.9.6c-87.i386.patch.rpm
9fbb35bdf838262ccb56b4c3924c3a08
source rpm(s):

ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/openssl-0.9.6c-87.src.rpm
0b09e243d99922087ace4052f330f493

2) Pending vulnerabilities in SUSE Distributions and
Workarounds:

• xf86_glx/xmodules/xloader
  The GLX and DRI code of the Xserver did not verify the “screen”
  parameter in several functions. This failure leads to a
  denial-ofservice condition and probably to arbitrary code execution
  as root. New packages are available on our FTP servers.
• gnome-session
  This updates solves a problem with the initialization of the
  LD_LIBRARY_PATH while starting GNOME by using /usr/X11R6/bin/gnome.
  This bug can lead to local privilege escalation. New packages are
  available on our FTP servers.
• pwlib
  This update addresses several security vulnerabilities that may be
  exploited remotely via applications that link with pwlib, like
  GnomeMeeting or alike. New packages are available on our FTP
  servers.
• libxml2
  A buffer overflow in the URI parsing code is fixed. This bug can
  lead to remote access to a system using libxml2. New packages are
  available on our FTP servers.
• mod_python
  A remote denial-of-service attack can be triggered against the
  Apache web server by sending a specific query string that is
  processed by mod_python. New packages are available on our FTP
  servers.
• mozilla
  A buffer overflow in the S/MIME code of mozilla has been fixed
  which could allow remote attackers to execute arbitrary commands as
  the user running mozilla. Additionally a flaw in cookie handling
  (CAN-2003-0592) and a cross-site-scripting bug was fixed. In some
  cases (as with the mozilla package) the complexity of the issue
  does not allow to add patches any more. By consequence, security
  related issues in mozilla cannot be addressed. As a service to our
  user community, we provide packages of newer mozilla versions at
  ftp://ftp.suse.com/pub/projects/mozilla/.
  These packages have been verified to run fine; they are not located
  in the update directory of the distribution in question because we
  cannot make any claims about the compatibility with the other
  packages in the product
• kernel
  A new kernel release was made available. This update fixes some
  minor local denial-of-service attacks. Additionally, the 8.2
  versions also includes a missing patch from SuSE-SA:2004:005.
• mailman
  A remote denial-of-service attack can be triggered in mailman 2.0.x
  (CAN-2003-0991). New packages will be available soon.
• metamail
  This update fixes two buffer overflows and two format string bugs
  that can be exploited remotely in conjunction with other tools to
  gain access to a system with the privileges of the user running New
  packages will be available soon.
• sysstat
  Two cases of insecure temporary file handling were found. The
  packages are currently being tested and will be available
  soon.

3) standard appendix: authenticity verification, additional
information

• Package authenticity verification:

  SUSE update packages are available on many mirror ftp servers
  all over the world. While this service is being considered valuable
  and important to the free and open source software community, many
  users wish to be sure about the origin of the package and its
  content before installing the package. There are two verification
  methods that can be used independently from each other to prove the
  authenticity of a downloaded file or rpm package:

  1. md5sums as provided in the (cryptographically signed)
     announcement.
  2. using the internal gpg signatures of the rpm package.
  3. execute the command md5sum <name-of-the-file.rpm> after
     you downloaded the file from a SUSE ftp server or its mirrors.
     Then, compare the resulting md5sum with the one that is listed in
     the announcement. Since the announcement containing the checksums
     is cryptographically signed (usually using the key [email protected]), the checksums show
     proof of the authenticity of the package. We disrecommend to
     subscribe to security lists which cause the email message
     containing the announcement to be modified so that the signature
     does not match after transport through the mailing list software.
     Downsides: You must be able to verify the authenticity of the
     announcement in the first place. If RPM packages are being rebuilt
     and a new version of a package is published on the ftp server, all
     md5 sums for the files are useless.
  4. rpm package signatures provide an easy way to verify the
     authenticity of an rpm package. Use the command rpm -v –checksig
     <file.rpm> to verify the signature of the package, where
     <file.rpm> is the filename of the rpm package that you have
     downloaded. Of course, package authenticity verification can only
     target an un-installed rpm package file. Prerequisites:
     1. gpg is installed
     2. The package is signed using a certain key. The public part of
        this key must be installed by the gpg program in the directory
        ~/.gnupg/ under the user’s home directory who performs the
        signature verification (usually root). You can import the key that
        is used by SUSE in rpm packages for SUSE Linux by saving this
        announcement to a file (“announcement.txt”) and running the command
        (do “su -” to be root): gpg –batch; gpg < announcement.txt |
        gpg –import SUSE Linux distributions version 7.1 and thereafter
        install the key “[email protected]”
        upon installation or upgrade, provided that the package gpg is
        installed. The file containing the public key is placed at the
        top-level directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de
        .
• SUSE runs two security mailing lists to which any interested
  party may subscribe:

  [email protected]

• general/linux/SUSE security discussion. All SUSE security
  announcements are sent to this list. To subscribe, send an email to

  <[email protected]>.

  [email protected]

• SUSE’s announce-only mailing list. Only SUSE’s security
  announcements are sent to this list. To subscribe, send an email to

  <[email protected]>.

For general information or the frequently asked questions (faq)
send mail to:

<[email protected]>
or
<[email protected]>
respectively.

SUSE’s security contact is <[email protected]> or
<[email protected]>.

The <[email protected]> public key is
listed below.

The information in this advisory may be distributed or
reproduced, provided that the advisory is not modified in any way.
In particular, it is desired that the clear-text signature shows
proof of the authenticity of the text.
SUSE Linux AG makes no warranties of any kind whatsoever with
respect to the information contained in this security advisory.