-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: cups Announcement-ID: SuSE-SA:2002:006 Date: Wednesday, Feb 27th 2002 12:10 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 We re-release SuSE Security Announcement SuSE-SA:2002:005 with the new announcement ID SuSE-SA:2002:006 due to minor packaging errors that can result in a malfunction of the printing subsystem. The erroneous packages have been removed from the ftp server. The new packages are in place as announced in the URL list below. 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 RPM package run "rclpd restart" as root to make the package upgrade effective. i386 Intel Platform: SuSE-7.3 ftp://ftp.suse.com/pub/suse/i386/update/7.3/d3/cups-devel-1.1.10-83.i386.rpm 8d5053ad177a11625184d0758487fc44 SuSE-7.3 ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-1.1.10-83.i386.rpm d13c2a15aec1e32d33e67e3c5dfbfcbe SuSE-7.3 ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-client-1.1.10-83.i386.rpm f6869afd7a3ca8d25094e8beb685be69 SuSE-7.3 ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-libs-1.1.10-83.i386.rpm cabe0639064f8d8f4e0966b52f11d879 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/cups-1.1.10-83.src.rpm 44565cf9eef0354eda24c79eb6754615 SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/d3/cups-devel-1.1.6-104.i386.rpm b248ca457d8240380bb5c52a27b18eef SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/cups-1.1.6-104.i386.rpm 828f470a6fbee50cfc7405c39aa1d81d source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/cups-1.1.6-104.src.rpm 8447e7162c38ecd5f63742de98d80e76 SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/d3/cups-devel-1.1.6-105.i386.rpm 4ea2040b5c7b46b2e55dacd7073ce9ac SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/cups-1.1.6-105.i386.rpm 268428ba6b0470de8ae381552f185420 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/cups-1.1.6-105.src.rpm 93195300593a49fe6236b5abbfca8806 Sparc Platform: SuSE-7.3 ftp://ftp.suse.com/pub/suse/sparc/update/7.3/d3/cups-devel-1.1.10-36.sparc.rpm 0970928774ba45661812d2e818b9bbb2 SuSE-7.3 ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-1.1.10-36.sparc.rpm 4587059b86c2cefd9097d778ec125ab8 SuSE-7.3 ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-client-1.1.10-36.sparc.rpm b26a1937a8bd286328ab164e1cc91ebe SuSE-7.3 ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-libs-1.1.10-36.sparc.rpm afed35a5212b217bab1556e0e5df39e6 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/cups-1.1.10-36.src.rpm bb1662c9b437b0b88c56a39df9b4b6ad SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/d3/cups-devel-1.1.6-38.sparc.rpm 0a093efb86b0eb024a21ab5532c2f08a SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n2/cups-1.1.6-38.sparc.rpm 69966f1ee23d904a5085d302a49678d6 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/cups-1.1.6-38.src.rpm b4921596bdec11a93da1031c43caa700 AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/d3/cups-devel-1.1.6-34.alpha.rpm a1883596165edd8b1fa597dcb9e21d70 SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/cups-1.1.6-34.alpha.rpm 96d90d112b52262dbd01b01aac5b64d3 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/cups-1.1.6-34.src.rpm 2d648e906fc29c64682c7797adbbdcac PPC PowerPC Platform: SuSE-7.3 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/d3/cups-devel-1.1.10-63.ppc.rpm 04d9a84650c335ecc550c4e55e57a576 SuSE-7.3 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/cups-1.1.10-63.ppc.rpm 1776913fc7df901ce37fe3f41ce3fcb8 SuSE-7.3 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/cups-client-1.1.10-63.ppc.rpm 75d676e87d82d58555bf24d3261d0da6 SuSE-7.3 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/cups-libs-1.1.10-63.ppc.rpm 34f744fc2e7b60db32abc89fbda9fbfd source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/cups-1.1.10-63.src.rpm fa19fa9c5e0558d426de857f2bf45ac6 ______________________________________________________________________________ 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 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 to verify the signature of the package, where 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 "build@suse.de" 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-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-announce@suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to . For general information or the frequently asked questions (faq) send mail to: or respectively. ===================================================================== SuSE's security contact is or . The 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. 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