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The well known and widely used mail client pine is vulnerable to a buffer overflow. The vulnerability exists in the code processing 'message/external-body' type messages. It allows remote attackers to execute arbitrary commands as the user running pine. Additionally an integer overflow in the MIME header parsing code has been fixed.
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-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: pine
Announcement-ID: SuSE-SA:2003:037
Date: Thursday, Sep 11th 2003 08:40 MEST
Affected products: 7.2, 7.3, 8.0, 8.1, 8.2
SuSE Linux Database Server,
SuSE eMail Server III, 3.1
SuSE Linux Enterprise Server 7, 8
SuSE Linux Firewall on CD/Admin host
SuSE Firewall on CD 2
SuSE Linux Connectivity Server
SuSE Linux Office Server
SuSE Linux Desktop 1.0
Vulnerability Type: remote code execution
Severity (1-10): 5
SuSE default package: yes
Cross References: CAN-2003-0720
CAN-2003-0721
Content of this advisory:
1) security vulnerability resolved: An integer overflow and a buffer
overflow in the pine mail reader.
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds:
- gkrellmd
- gdm2
- kernel/PPC64
- whois
- xfs
- postgresql
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
The well known and widely used mail client pine is vulnerable to
a buffer overflow. The vulnerability exists in the code processing
'message/external-body' type messages. It allows remote attackers
to execute arbitrary commands as the user running pine.
Additionally an integer overflow in the MIME header parsing code
has been fixed.
Since there is no workaround, an update is strongly recommended for
pine users.
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.
Intel i386 Platform:
SuSE-8.2:
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/pine-4.53-109.i586.rpm
c3d94808af56ac9fcc77bec85733bc47
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/pine-4.53-109.i586.patch.rpm
fff680da5c283d2d50a44419976881a8
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/pine-4.53-109.src.rpm
327935d468b4cd7794dde00168a901c3
SuSE-8.1:
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/pine-4.44-283.i586.rpm
63bc3f723537b18a274404c9b30ea784
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/pine-4.44-283.i586.patch.rpm
1d4711753488a274c8cf168b24c91acf
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/pine-4.44-283.src.rpm
9617c79c854c2b800df476aa515ae351
SuSE-8.0:
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/pine-4.44-281.i386.rpm
edea9fbbf85a9f922d2b2aa8bf4a14e8
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/pine-4.44-281.i386.patch.rpm
18c95a919fb8767f3cff10218ce6c08c
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/pine-4.44-281.src.rpm
6bf6b39feed23892faceaa78fd13b751
SuSE-7.3:
ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/pine-4.33-280.i386.rpm
65d24983aa99d276e75ccd557eee557b
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/pine-4.33-280.src.rpm
b0ecee1170d1fdec3b22e98d0941071a
SuSE-7.2:
ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/pine-4.33-279.i386.rpm
574ae6efcf81a53a26d5d19b763f96ab
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/pine-4.33-279.src.rpm
14fbade46db5dbc9c9893cf507d57e4a
Sparc Platform:
SuSE-7.3:
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/pine-4.33-101.sparc.rpm
4e90502bfc4ca5b49c20f8a10cb9d473
source rpm(s):
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/pine-4.33-101.src.rpm
c600432ad453999aa329b836490842df
PPC Power PC Platform:
SuSE-7.3:
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/pine-4.33-153.ppc.rpm
0c4323f70d9cc8b95d35f4356351990c
source rpm(s):
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/pine-4.33-153.src.rpm
6f6987ad3110ff3bf0bd5edb08ee935a
______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- gkrellmd
The gkrellmd, part of the gkrellm package, contains a buffer overflow.
Only the gkrellm package shipped with SL 8.2 is vulnerable. New update
packages will be available on our FTP servers soon.
- gdm2
The Gnome Display Manager (GDM) contains a bug which allows local
attackers to view any file on the system. Fixed packages will be available
on our FTP servers soon.
- kernel/PPC64
A locally exploitable vulnerability in the kernel for SLES 8 PowerPC
based IBM iSeries Systems allows an attacker to overwrite arbitrary kernel
memory. Update packages are being published on our maintenance web, and
our customers are being notified individually.
- whois
A buffer overflow exists in the whois command. New packages will be
available on our FTP servers soon.
- xfs
The X font server (xfs) contains various integer overflows which could
allow remote attackers to execute arbitrary commands. SuSE products
do not enable xfs by default, but the update packages should be installed
as soon as they are available on our FTP servers.
- postgresql
The SQL database server postgresql of version 7.3.x prior 7.3.4 is
vulnerable to buffer overflow attacks. New packages 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.
1) 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 security@suse.de),
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.
2) 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:
a) gpg is installed
b) 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 "build@suse.de" 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:
suse-security@suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe@suse.com>.
suse-security-announce@suse.com
- SuSE's announce-only mailing list.
Only SuSE's security announcements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe@suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info@suse.com> or
<suse-security-faq@suse.com> respectively.
=====================================================================
SuSE's security contact is <security@suse.com> or <security@suse.de>.
The <security@suse.de> 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.
Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security@suse.de>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>
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Bye,
Thomas
--
Thomas Biege <thomas@suse.de>, SuSE Linux AG, Security Support & Auditing
"lynx -source http://www.suse.de/~thomas/contact/thomas.asc | pgp -fka"
Key fingerprint = 51 AD B9 C7 34 FC F2 54 01 4A 1C D4 66 64 09 83
--
... bring the pieces back together, we discover communication...
- Maynard James Keenan
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: Thu Sep 11 2003 - 09:53:38 CEST
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