Date: Mon, 25 Feb 2002 13:56:01 +0100 (CET)
From: Thomas Biege <[email protected]>
To: [email protected]Subject: SuSE Security Announcement: cups (SuSE-SA:2002:005)
-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: cups
Announcement-ID: SuSE-SA:2002:005
Date: Saturday, Feb 23st 2002 09:10 MET
Affected SuSE versions: 7.1, 7.2, 7.3
Vulnerability Type: remote privilege escalation
Severity (1-10): 5
SuSE default package: no
Other affected systems: all systems running CUPS
Content of this advisory:
1) security vulnerability resolved: CUPS bufferoverflow in IPP
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 well known Common Unix Printing System (CUPS) was found vulnerable
to a buffer overflow in the Internet Printing Protocol (IPP) handling
code.
The buffer overflow could be exploited by a remote attacker as long as
their IP address is allowed to connect to the CUPS server.
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.
After updateing the packages run "rclpd restart" as root to start the
new daemon.
i386 Intel Platform:
SuSE-7.3
ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-1.1.10-81.i386.rpm
bfb52a55305ac12880b5e59410205a6e
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/cups-1.1.10-81.src.rpm
e3d276cb505eaa1bf35946b5c1029562
SuSE-7.3
ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-client-1.1.10-81.i386.rpm
527eeb095abeb0ee0cad95f028a8222b
SuSE-7.3
ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-libs-1.1.10-81.i386.rpm
9a125db90716f71b4fa31cf2ba4180a8
SuSE-7.3
ftp://ftp.suse.com/pub/suse/i386/update/7.3/d3/cups-devel-1.1.10-81.i386.rpm
d8457f2c62e7a85e927b615570efa82b
SuSE-7.2
ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/cups-1.1.6-103.i386.rpm
9a6c6b3fcd1dea6504121b76de1615b5
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/cups-1.1.6-103.src.rpm
92c0fc63d6b9c6c299583868f69ac649
SuSE-7.2
ftp://ftp.suse.com/pub/suse/i386/update/7.2/d3/cups-devel-1.1.6-103.i386.rpm
a0ed0a207040b6aa6b8080d7e146ce04
SuSE-7.1
ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/cups-1.1.6-102.i386.rpm
488317348075ae50f0d5f5bd9e82b247
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/cups-1.1.6-102.src.rpm
54f3b1bcb3cc727dfcf05514d84c402d
SuSE-7.1
ftp://ftp.suse.com/pub/suse/i386/update/7.1/d3/cups-devel-1.1.6-102.i386.rpm
6019620534415dd4d09681583ee627a1
Sparc Platform:
SuSE-7.3
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-1.1.10-34.sparc.rpm
7777fb032e1c2b45956db2d3ccf9b3c3
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/cups-1.1.10-34.src.rpm
91684561da7f476055c71239b61c549b
SuSE-7.3
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-client-1.1.10-34.sparc.rpm
8badff242e1903d7f812bafb0e6a1831
SuSE-7.3
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-libs-1.1.10-34.sparc.rpm
355221f9ca9c435a24251915b3384ea2
SuSE-7.3
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/d3/cups-devel-1.1.10-34.sparc.rpm
60daf45ca8a75237421c8abd27c9f433
SuSE-7.1
ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n2/cups-1.1.6-37.sparc.rpm
063b7953d50ad4b4958541bfaccd270c
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/cups-1.1.6-37.src.rpm
d5d5e4bf719ab2eca49cadc9708e0ff3
SuSE-7.1
ftp://ftp.suse.com/pub/suse/sparc/update/7.1/d3/cups-devel-1.1.6-37.sparc.rpm
2cbd702f7d978a098ce9c84e3b1cc7ff
AXP Alpha Platform:
SuSE-7.1
ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/cups-1.1.6-33.alpha.rpm
7188e40aac0c097095c2df088a93265d
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/cups-1.1.6-33.src.rpm
ac122fe5b1305bab6a8c5904699d4bd5
SuSE-7.1
ftp://ftp.suse.com/pub/suse/axp/update/7.1/d3/cups-devel-1.1.6-33.alpha.rpm
ae6685e65e7db1b9afe276d51d6da51a
PPC PowerPC Platform:
SuSE-7.3
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/cups-1.1.10-60.ppc.rpm
99aa8fcf0f21d5799931953c90435d72
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/cups-1.1.10-60.src.rpm
6e0b6c9e04eb7167b3585aebbc0deb29
SuSE-7.3
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/cups-client-1.1.10-60.ppc.rpm
61f807924b16930166d711c1da8a4cc0
SuSE-7.3
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/cups-libs-1.1.10-60.ppc.rpm
090132d0ae790027382c88a9b331fa9e
SuSE-7.3
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/d3/cups-devel-1.1.10-60.ppc.rpm
f211da7b5dc400c8e087a6ef8178afd5
SuSE-7.1
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n2/cups-1.1.6-47.ppc.rpm
52c247f3cbf4836dacec7a767a4fe3c7
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/cups-1.1.6-47.src.rpm
1937730cf78b1c658b430e9525084a93
SuSE-7.1
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/d3/cups-devel-1.1.6-47.ppc.rpm
c906d4106d30f1e84133e8d45a857b2d
______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- squid
A heap overflow in squid's URL constructing functions is fixed and
new packages are currently being built.
- ucd-snmpd
The UCD snmpd contains various security releated bugs.
We are currently reviewing the code and available fixes to ensure
they all get fixed. Patches will be available as soon as possible.
It is strongly recommended to filter SNMP (TCP and UDP packets
with destination of port 161) traffic.
- hanterm/wmtv
The recently reported vulnerabilities in hanterm and wmtv do not
affect SuSE installations because they are not installed setuid
or setgid.
- cipe
We are about to prepare kernel update packages that fix a DoS
problem in the kernel modules for the cipe encrypted tunneling
software.
______________________________________________________________________________
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 [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.
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 "[email protected]" 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:
[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 annoucements 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 cleartext signature shows proof of the
authenticity of the text.
SuSE GmbH 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 <[email protected]>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <[email protected]>
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Bye,
Thomas
--
Thomas Biege <[email protected]>,SuSE GmbH,Deutschherrnstr. 15-19,90429 Nuernberg
Function: 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
--
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