-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: cups Announcement-ID: SuSE-SA:2003:028 Date: Fri Jun 6 16:00:00 MEST 2003 Affected products: 7.2, 7.3, 8.0, 8.1, 8.2 SuSE Linux Desktop 1.0 SuSE Linux Enterprise Server 8 UnitedLinux 1.0 Vulnerability Type: remote Denial of Service Severity (1-10): 3 SuSE default package: since SuSE Linux 8.1 Cross References: http://www.cups.org/str.php?L75 CAN-2003-0195 Content of this advisory: 1) security vulnerability resolved: Remote Denial of Service attack. problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - snort - apache-contrib/mod_gzip - pptpd - syslogd 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 remote Denial of Service attack. The CUPS daemon will stop serving clients if the second carriage return in a request is not sent to complete the header. Since the vulnerability occurs before any authorization or address verification there is no other workaround than shutting down the CUPS server. To be sure the update takes effect you have to restart the CUPS daemon by executing the following command as root: "rccups try-restart" 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-8.2: ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cups-1.1.18-77.i586.rpm 91272e169e3ca412d4a8b6bc70319883 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cups-libs-1.1.18-77.i586.rpm 66c3ab6317ab10582f5cbebaf7dfc03a ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cups-client-1.1.18-77.i586.rpm 32037ca780b2d5b1876efd6ab078a1a5 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cups-devel-1.1.18-77.i586.rpm 845c0babac174ac14e51e5088072bbec patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cups-1.1.18-77.i586.patch.rpm 878294aa45e44adb73f15084ca390ef9 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cups-libs-1.1.18-77.i586.patch.rpm 6c5952625f96fcbe2a03f98e6f4c7766 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cups-client-1.1.18-77.i586.patch.rpm afd322019297223f07e4fedb8601e86c ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cups-devel-1.1.18-77.i586.patch.rpm 3ee0fa97825c9914bdf932ff7e7255aa source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/cups-1.1.18-77.src.rpm da3e37ee137195f7d3490480d42f9fe6 SuSE-8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cups-1.1.15-98.i586.rpm a68dc792bff611653b3c0fdca02b9cb3 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cups-libs-1.1.15-98.i586.rpm e70fad2398efff35f35f3bbc81de7863 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cups-client-1.1.15-98.i586.rpm ffeb2200a9113f9d32a3491d185b2be3 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cups-devel-1.1.15-98.i586.rpm cc2e85315b11ab0e782ccdabdfbc1bd4 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cups-1.1.15-98.i586.patch.rpm 3d9dab433ab15cdf555c69752cd50c68 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cups-libs-1.1.15-98.i586.patch.rpm 330b981605a188d43dcb2384b7af0471 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cups-client-1.1.15-98.i586.patch.rpm 7fd0c91aa419489d90a0d72dc31afdd9 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cups-devel-1.1.15-98.i586.patch.rpm 843d9eb7a88928b3bc6a086895166dc1 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/cups-1.1.15-98.src.rpm 1d391aa7fe9c673b10cdc433a31d16a8 SuSE-8.0: ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/cups-1.1.12-95.i386.rpm 8db608fcc61ad30d0797e62f70c0fc34 ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/cups-libs-1.1.12-95.i386.rpm 4a4d31fbc7eb40e2af7ccfe21d3aa476 ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/cups-client-1.1.12-95.i386.rpm 9712c749f41d22a52198cd3ff383201b ftp://ftp.suse.com/pub/suse/i386/update/8.0/d4/cups-devel-1.1.12-95.i386.rpm 57921489e2ec29b9b0827c2a9027159f patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/cups-1.1.12-95.i386.patch.rpm 464024e46e3d5379a73daf56432b65ba ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/cups-libs-1.1.12-95.i386.patch.rpm 68be34579e0c23d08307867c6f38b50a ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/cups-client-1.1.12-95.i386.patch.rpm 1ba26cbfa3d72ccdf2a96af6b85fbbff ftp://ftp.suse.com/pub/suse/i386/update/8.0/d4/cups-devel-1.1.12-95.i386.patch.rpm f250bea48040e7e1efbc6cecb830d33d source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/cups-1.1.12-95.src.rpm 414e3c386b5c735d0b592da60fa71861 SuSE-7.3: ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-1.1.10-99.i386.rpm dba10a28d785f5c4f6e4ace95bf2045b ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-libs-1.1.10-99.i386.rpm 4a4660f14d16d269ca4496c683a652d1 ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/cups-client-1.1.10-99.i386.rpm f4c054ae1c1816d11e54e61718df0d64 ftp://ftp.suse.com/pub/suse/i386/update/7.3/d3/cups-devel-1.1.10-99.i386.rpm 10be0d75d4e8b153a87192576b2a95a9 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/cups-1.1.10-99.src.rpm 773c467254391265e47e05896b33d679 SuSE-7.2: ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/cups-1.1.6-128.i386.rpm 1b822c12662899b7b59b1a16bffef5ff ftp://ftp.suse.com/pub/suse/i386/update/7.2/d3/cups-devel-1.1.6-128.i386.rpm de90820996dfef9ea6f0682056703800 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/cups-1.1.6-128.src.rpm ecd550a43e25a52a2d15936cc9f8faf1 Sparc Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-1.1.10-50.sparc.rpm df93926e3e58ab78aa679adc111d67c2 ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-libs-1.1.10-50.sparc.rpm 9522a331ce50310684b574fa87caed3e ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/cups-client-1.1.10-50.sparc.rpm 7de88ba0d3eedee6eec1df815106ed3a ftp://ftp.suse.com/pub/suse/sparc/update/7.3/d3/cups-devel-1.1.10-50.sparc.rpm 4e265eb21c4d49c7255582f2e0298d7a source rpm(s): ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/cups-1.1.10-50.src.rpm 46f2d6fa8636771f77dfbdb7f044cdfe PPC Power PC Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/cups-1.1.10-88.ppc.rpm a1fced68fc86bfcab100154028b7063e ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/cups-libs-1.1.10-88.ppc.rpm 41e166ca73091950d509d588615475d9 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/d3/cups-devel-1.1.10-88.ppc.rpm 983134d1ebd968aa13867ed19542230c source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/cups-1.1.10-88.src.rpm 28f27c10495bc7f73bd8a8f7ecfed378 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - snort A overflow in the stream4 preprocessor has been fixed in the new snort packages which will be available soon on our ftp servers. - apache-contrib/mod_gzip If the mod_gzip module for apache is compiled with enabled debug mode three security vulnerabilities can be exploited remotely and localy. SuSE Linux does not ship mod_gzip with this option enabled. The three bugs will be fixed in future versions of SuSE Linux. - pptpd A buffer overflow was found in the PPTP daemon. New packages will soon be available on our ftp servers. We will inform you in a separate advisory when the pptpd packages are available. - syslogd Dirk Mueller reported a problem to SuSE Security that syslogd fails to write to a logfile if file size (u)limits set by the administrator are being exceeded. We recommend that administrators carefully choose which services might fail if ulimits are set for processes that run as root. If an administrator decides to use an additional logfile, then she should make sure that this logfile is stated in a configuration file in /etc/logrotate.d (or /etc/logfiles in older SuSE Linux releases). ______________________________________________________________________________ 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 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-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 . 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 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 pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQGiBDnu9IERBACT8Y35+2vv4MGVKiLEMOl9GdST6MCkYS3yEKeueNWc+z/0Kvff 4JctBsgs47tjmiI9sl0eHjm3gTR8rItXMN6sJEUHWzDP+Y0PFPboMvKx0FXl/A0d M+HFrruCgBlWt6FA+okRySQiliuI5phwqkXefl9AhkwR8xocQSVCFxcwvwCglVcO QliHu8jwRQHxlRE0tkwQQI0D+wfQwKdvhDplxHJ5nf7U8c/yE/vdvpN6lF0tmFrK XBUX+K7u4ifrZlQvj/81M4INjtXreqDiJtr99Rs6xa0ScZqITuZC4CWxJa9GynBE D3+D2t1V/f8l0smsuYoFOF7Ib49IkTdbtwAThlZp8bEhELBeGaPdNCcmfZ66rKUd G5sRA/9ovnc1krSQF2+sqB9/o7w5/q2qiyzwOSTnkjtBUVKn4zLUOf6aeBAoV6NM CC3Kj9aZHfA+ND0ehPaVGJgjaVNFhPi4x0e7BULdvgOoAqajLfvkURHAeSsxXIoE myW/xC1sBbDkDUIBSx5oej73XCZgnj/inphRqGpsb+1nKFvF+rQoU3VTRSBQYWNr YWdlIFNpZ25pbmcgS2V5IDxidWlsZEBzdXNlLmRlPohcBBMRAgAcBQI57vSBBQkD wmcABAsKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyl8sAJ98BgD40zw0GHJHIf6d NfnwI2PAsgCgjH1+PnYEl7TFjtZsqhezX7vZvYCIRgQQEQIABgUCOnBeUgAKCRCe QOMQAAqrpNzOAKCL512FZvv4VZx94TpbA9lxyoAejACeOO1HIbActAevk5MUBhNe LZa/qM2JARUDBRA6cGBvd7LmAD0l09kBATWnB/9An5vfiUUE1VQnt+T/EYklES3t XXaJJp9pHMa4fzFa8jPVtv5UBHGee3XoUNDVwM2OgSEISZxbzdXGnqIlcT08TzBU D9i579uifklLsnr35SJDZ6ram51/CWOnnaVhUzneOA9gTPSr+/fT3WeVnwJiQCQ3 0kNLWVXWATMnsnT486eAOlT6UNBPYQLpUprF5Yryk23pQUPAgJENDEqeU6iIO9Ot 1ZPtB0lniw+/xCi13D360o1tZDYOp0hHHJN3D3EN8C1yPqZd5CvvznYvB6bWBIpW cRgdn2DUVMmpU661jwqGlRz1F84JG/xe4jGuzgpJt9IXSzyohEJB6XG5+D0BiF0E ExECAB0FAjxqqTQFCQoAgrMFCwcKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyp1f AJ9dR7saz2KPNwD3U+fy/0BDKXrYGACfbJ8fQcJqCBQxeHvt9yMPDVq0B0W5Ag0E Oe70khAIAISR0E3ozF/la+oNaRwxHLrCet30NgnxRROYhPaJB/Tu1FQokn2/Qld/ HZnh3TwhBIw1FqrhWBJ7491iAjLR9uPbdWJrn+A7t8kSkPaF3Z/6kyc5a8fas44h t5h+6HMBzoFCMAq2aBHQRFRNp9Mz1ZvoXXcI1lk1l8OqcUM/ovXbDfPcXsUVeTPT tGzcAi2jVl9hl3iwJKkyv/RLmcusdsi8YunbvWGFAF5GaagYQo7YlF6UaBQnYJTM 523AMgpPQtsKm9o/w9WdgXkgWhgkhZEeqUS3m5xNey1nLu9iMvq9M/iXnGz4sg6Q 2Y+GqZ+yAvNWjRRou3zSE7Bzg28MI4sAAwYH/2D71Xc5HPDgu87WnBFgmp8MpSr8 QnSs0wwPg3xEullGEocolSb2c0ctuSyeVnCttJMzkukL9TqyF4s/6XRstWirSWaw JxRLKH6Zjo/FaKsshYKf8gBkAaddvpl3pO0gmUYbqmpQ3xDEYlhCeieXS5MkockQ 1sj2xYdB1xO0ExzfiCiscUKjUFy+mdzUsUutafuZ+gbHog1CN/ccZCkxcBa5IFCH ORrNjq9pYWlrxsEn6ApsG7JJbM2besW1PkdEoxak74z1senh36m5jQvVjA3U4xq1 wwylxadmmJaJHzeiLfb7G1ZRjZTsB7fyYxqDzMVul6o9BSwO/1XsIAnV1uuITAQY EQIADAUCOe70kgUJA8JnAAAKCRCoTtronIAKyksiAJsFB3/77SkH3JlYOGrEe1Ol 0JdGwACeKTttgeVPFB+iGJdiwQlxasOfuXyITAQYEQIADAUCPGqpWQUJCgCCxwAK CRCoTtronIAKyofBAKCSZM2UFyta/fe9WgITK9I5hbxxtQCfX+0ar2CZmSknn3co SPihn1+OBNyZAQ0DNuEtBAAAAQgAoCRcd7SVZEFcumffyEwfLTcXQjhKzOahzxpo omuF+HIyU4AGq+SU8sTZ/1SsjhdzzrSAfv1lETACA+3SmLr5KV40Us1w0UC64cwt A46xowVq1vMlH2Lib+V/qr3b1hE67nMHjysECVx9Ob4gFuKNoR2eqnAaJvjnAT8J /LoUC20EdCHUqn6v+M9t/WZgC+WNR8cq69uDy3YQhDP/nIan6fm2uf2kSV9A7ZxE GrwsWl/WX5Q/sQqMWaU6r4az98X3z90/cN+eJJ3vwtA+rm+nxEvyev+jaLuOQBDf ebh/XA4FZ35xmi+spdiVeJH4F/ubaGlmj7+wDOF3suYAPSXT2QAFEbQlU3VTRSBT ZWN1cml0eSBUZWFtIDxzZWN1cml0eUBzdXNlLmRlPokBFQMFEDbhLUfkWLKHsco8 RQEBVw4H/1vIdiOLX/7hdzYaG9crQVIk3QwaB5eBbjvLEMvuCZHiY2COUg5QdmPQ 8SlWNZ6k4nu1BLcv2g/pymPUWP9fG4tuSnlUJDrWGm3nhyhAC9iudP2u1YQY37Gb B6NPVaZiYMnEb4QYFcqv5c/r2ghSXUTYk7etd6SW6WCOpEqizhx1cqDKNZnsI/1X 11pFcO2N7rc6byDBJ1T+cK+F1Ehan9XBt/shryJmv04nli5CXQMEbiqYYMOu8iaA 8AWRgXPCWqhyGhcVD3LRhUJXjUOdH4ZiHCXaoF3zVPxpeGKEQY8iBrDeDyB3wHmj qY9WCX6cmogGQRgYG6yJqDalLqrDOdmJARUDBRA24S0Ed7LmAD0l09kBAW04B/4p WH3f1vQn3i6/+SmDjGzUu2GWGq6Fsdwo2hVM2ym6CILeow/K9JfhdwGvY8LRxWRL hn09j2IJ9P7H1Yz3qDf10AX6V7YILHtchKT1dcngCkTLmDgC4rs1iAAl3f089sRG BafGPGKv2DQjHfR1LfRtbf0P7c09Tkej1MP8HtQMW9hPkBYeXcwbCjdrVGFOzqx+ AvvJDdT6a+oyRMTFlvmZ83UV5pgoyimgjhWnM1V4bFBYjPrtWMkdXJSUXbR6Q7Pi RZWCzGRzwbaxqpl3rK/YTCphOLwEMB27B4/fcqtBzgoMOiaZA0M5fFoo54KgRIh0 zinsSx2OrWgvSiLEXXYKiEYEEBECAAYFAjseYcMACgkQnkDjEAAKq6ROVACgjhDM /3KM+iFjs5QXsnd4oFPOnbkAnjYGa1J3em+bmV2aiCdYXdOuGn4ZiQCVAwUQN7c7 whaQN/7O/JIVAQEB+QP/cYblSAmPXxSFiaHWB+MiUNw8B6ozBLK0QcMQ2YcL6+Vl D+nSZP20+Ja2nfiKjnibCv5ss83yXoHkYk2Rsa8foz6Y7tHwuPiccvqnIC/c9Cvz dbIsdxpfsi0qWPfvX/jLMpXqqnPjdIZErgxpwujas1n9016PuXA8K3MJwVjCqSKI RgQQEQIABgUCOhpCpAAKCRDHUqoysN/3gCt7AJ9adNQMbmA1iSYcbhtgvx9ByLPI DgCfZ5Wj+f7cnYpFZI6GkAyyczG09sE= =LRKC - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3in Charset: noconv iQEVAwUBPuCqUXey5gA9JdPZAQEIJAf/ZNerblDdGSA9U2v81ijdaNCWs8zN4ICt 85TwQCWZU98ptiB2rX1WltEMKoEDTr/lYx/8Y7YnsikjoNUElmETJM88OS1LAOLa TExOBs+DhPYma6pRoXu8z/X9hM2vCgcV4vRpiCGxt2LxUgoc07KowjMJQ51+GLIo XuOwKSmEN4T39w7LdcJFJg8++9jcNuKpNLovwCkX6eHikVtswcBK2M6m74uaOOrn OxqeBxOgo/zt8os8Ghh5lDaXMKqNMDch6FHtipPuJXYwETjmDPbRg7vjI3qdho/l jV22hd3iVH/8eruTEBFI+cv3vnLJSJNOO5VB14jf2R9312re+1X9Tg== =T6ld -----END PGP SIGNATURE----- -- ~ ~ perl self.pl ~ $_='print"\$_=\47$_\47;eval"';eval ~ krahmer@suse.de - SuSE Security Team ~