-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: tcpdump/libpcap
Announcement-ID: SuSE-SA:2002:020
Date: Wed May 29 14:00:00 MEST 2002
Affected products: 6.4, 7.0, 7.1, 7.2, 7.3, 8.0,
SuSE Linux Database Server,
SuSE eMail Server III,
SuSE Firewall Adminhost VPN,
SuSE Linux Admin-CD for Firewall,
SuSE Linux Live-CD for Firewall,
SuSE Linux Enterprise Server for S/390,
SuSE Linux Connectivity Server,
SuSE Linux Enterprise Server 7
Vulnerability Type: remote command execution
Severity (1-10): 6
SuSE default package: yes
Other affected systems: All systems with vulnerable tcpdump.
Content of this advisory:
1) security vulnerability resolved: Buffer overflow in tcpdump.
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
The tcpdump program may be used to capture and decode network traffic.
Tcpdump decodes certain packets such as AFS requests in a wrong way
resulting in a buffer overflow. Since running tcpdump requires root
privileges this may lead to a root compromise of the system running
tcpdump. We strongly recommend an update for administrators using
tcpdump to monitor their networks since the only safe workaround is to
not use it at all.
Additionally to the fixed tcpdump packages we provide new libpcap
packages. Libpcap on which most network monitoring programs rely also
contained overflows which however are only exploitable by local attackers
if you installed programs using libpcap setuid. This is not found in a
default install.
More information about tcpdump and libpcap may be found at
http://www.tcpdump.org
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.
i386 Intel Platform:
SuSE-8.0
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/tcpdump-3.6.2-300.i386.rpm
f6b5499e4857575fa162ae24cde181c8
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/tcpdump-3.6.2-300.src.rpm
2dd114976f858d0a66c83f409dbf25a0
SuSE-7.3
ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/tcpdump-3.6.2-300.i386.rpm
dc7fba8709f74476ee463e3b7d3d9042
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/tcpdump-3.6.2-300.src.rpm
d2d6a940df5c40e54a6b30e3698458ef
SuSE-7.2
ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/tcpdump-3.4a6-376.i386.rpm
601bc08d351e8100767bbfd502efd44b
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/tcpdump-3.4a6-376.src.rpm
af87a4ad56fc853800c6af5982899f18
SuSE-7.1
ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/tcpdump-3.4a6-375.i386.rpm
a3251d65bfa05948ce3796ac9e5fdf5b
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/tcpdump-3.4a6-375.src.rpm
84ba69db15e1ff569cf674f7d61428f1
SuSE-7.0
ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/tcpdump-3.4a6-374.i386.rpm
63d57b2062a91d5fabeb43a5543d245e
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/tcpdump-3.4a6-374.src.rpm
204195b01bc25f84209029bed0eb00cd
SuSE-6.4
ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/tcpdump-3.4a6-372.i386.rpm
ebb48c115355dc4ba1f45b1f8c36f9aa
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/tcpdump-3.4a6-372.src.rpm
d2087aea083c4f6b93a518eee00c979e
Sparc Platform:
SuSE-7.3
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/tcpdump-3.6.2-58.sparc.rpm
bb422a4c2d025d3b8a805345a200576a
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/tcpdump-3.6.2-58.src.rpm
e0f85bd701865ca1f3d0923d1b9eb24c
SuSE-7.1
ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n1/tcpdump-3.4a6-318.sparc.rpm
eaf6237823690fe4cb72df39b2b75a5f
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/tcpdump-3.4a6-318.src.rpm
458f7aaa2ed33606007d345d371bf8c4
SuSE-7.0
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/tcpdump-3.4a6-318.sparc.rpm
6137a3ecadd2bfd95b51039fef52187b
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/tcpdump-3.4a6-318.src.rpm
0227535bdc5f7bd6980e77737cc6182c
AXP Alpha Platform:
SuSE-7.1
ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/tcpdump-3.4a6-329.alpha.rpm
614dfa16b71456692bc1d92b9db0998b
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/tcpdump-3.4a6-329.src.rpm
e5a05bdbe3d5a29f0840c488e703268b
SuSE-7.0
ftp://ftp.suse.com/pub/suse/axp/update/7.0/n1/tcpdump-3.4a6-330.alpha.rpm
0f1fbdfdcf8f4e1a90424df1b3ad05bc
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/tcpdump-3.4a6-330.src.rpm
d48289b8926c3fa7602b6ad026ae4130
SuSE-6.4
ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/tcpdump-3.4a6-330.alpha.rpm
bf9ef22920ff73802e3b02005476527b
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/tcpdump-3.4a6-330.src.rpm
1fa595c3febfc97f45642faffdd1dfb1
PPC Power PC Platform:
SuSE-7.3
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/tcpdump-3.6.2-189.ppc.rpm
303f6a00defddc3b8a3be1ab386021cf
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/tcpdump-3.6.2-189.src.rpm
552355e0f15582d47d64fd3a97542cf3
SuSE-7.1
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/tcpdump-3.4a6-317.ppc.rpm
4dd468ba517be7c7f52a8b2ac7c2beb0
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/tcpdump-3.4a6-317.src.rpm
69be109e360246794c66ed55e199ee95
SuSE-7.0
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/tcpdump-3.4a6-316.ppc.rpm
1b51e5529fa559d8453588f09d9b8585
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/tcpdump-3.4a6-316.src.rpm
20d1da2b898a483df771809747851967
SuSE-6.4
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/tcpdump-3.4a6-315.ppc.rpm
97cd7574108f3fcb9f52a7213d626481
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/tcpdump-3.4a6-315.src.rpm
67c63c89e26c2a17df6fef3585f41481
______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- Perl-Digest-MD5
The Perl Digest-MD5 module fails to handle utf8 characters properly
and thus calculates wrong hash sums for certain input. New packages
are already available on our ftp servers.
______________________________________________________________________________
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 securityat_private),
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 uninstalled 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 "buildat_private" upon installation or upgrade, provided that
the package gpg is installed. The file containing the public key
is placed at the toplevel 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-securityat_private
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribeat_private>.
suse-security-announceat_private
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribeat_private>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-infoat_private> or
<suse-security-faqat_private> respectively.
=====================================================================
SuSE's security contact is <securityat_private> or <securityat_private>.
The <securityat_private> 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 cleartext 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 <securityat_private>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <buildat_private>
- -----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org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=LRKC
- -----END PGP PUBLIC KEY BLOCK-----
-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
iQEVAwUBPPS7U3ey5gA9JdPZAQGGzQgAluto4ljBhn1o2NZUAQeyX57dCXBwF7X+
d3Y+R7EkUG9jktmIuRqpUBIRz21ckTLGbZkXblNZYKl/EPYTZDGYaG3/GfYJ8NKN
5X/VL1LY+WqPYzEMQtkIBGIBIltD6jTQAJ4TSnKqvYAFajW2lN4ZahDQET1Xr9ma
Vw5DnmPVsW1kYCbgL8qz+q0u4d7IUqF07A2iTUeGpfy4cyD8KbYFoZM3UeKe1T6g
73TlkbeP1ifZDOetGGQBc/wVpKUUUrp6srDJc1rUh2sEB0u5+c3o0zawP1ltPqZV
KyVuofDRLs+BwRHm10eMbjbTsm9d1Wv8TZwSRU27Zh8SDZxqMiF0LQ==
=7hKT
-----END PGP SIGNATURE-----
--
~
~ perl self.pl
~ $_='print"\$_=\47$_\47;eval"';eval
~ krahmerat_private - SuSE Security Team
~
This archive was generated by hypermail 2b30 : Wed May 29 2002 - 06:19:03 PDT