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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2003.0756 -- RHSA-2003:275-01 Updated CUPS packages fix denial of service 04 November 2003 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: CUPS Publisher: Red Hat Operating System: Red Hat Linux 8.0 Red Hat Linux 9 Platform: i386 Impact: Denial of Service Access Required: Remote CVE Names: CAN-2003-0788 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Updated CUPS packages fix denial of service Advisory ID: RHSA-2003:275-01 Issue date: 2003-11-03 Updated on: 2003-11-03 Product: Red Hat Linux Keywords: Cross references: Obsoletes: CVE Names: CAN-2003-0788 - - --------------------------------------------------------------------- 1. Topic: Updated CUPS packages that fix a problem where CUPS can hang are now available. 2. Relevant releases/architectures: Red Hat Linux 8.0 - i386 Red Hat Linux 9 - i386 3. Problem description: CUPS is a print spooler. Paul Mitcheson reported a situation where the CUPS Internet Printing Protocol (IPP) implementation in CUPS versions prior to 1.1.19 would get into a busy loop. This could result in a denial of service. In order to exploit this bug an attacker would need to have the ability to make a TCP connection to the IPP port (by default 631). Users of CUPS are advised to install these updated packages, which contain a backported security patch and are not vulnerable to this issue. These packages also fix a problem with the LPD backend that could cause jobs to be repeated. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. If up2date fails to connect to Red Hat Network due to SSL Certificate Errors, you need to install a version of the up2date client with an updated certificate. The latest version of up2date is available from the Red Hat FTP site and may also be downloaded directly from the RHN website: https://rhn.redhat.com/help/latest-up2date.pxt 5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info): 97958 - IPP at 100% processor doing nothing useful. 107256 - duplicated printing 6. RPMs required: Red Hat Linux 8.0: SRPMS: ftp://updates.redhat.com/8.0/en/os/SRPMS/cups-1.1.17-0.9.src.rpm i386: ftp://updates.redhat.com/8.0/en/os/i386/cups-1.1.17-0.9.i386.rpm ftp://updates.redhat.com/8.0/en/os/i386/cups-devel-1.1.17-0.9.i386.rpm ftp://updates.redhat.com/8.0/en/os/i386/cups-libs-1.1.17-0.9.i386.rpm Red Hat Linux 9: SRPMS: ftp://updates.redhat.com/9/en/os/SRPMS/cups-1.1.17-13.3.0.3.src.rpm i386: ftp://updates.redhat.com/9/en/os/i386/cups-1.1.17-13.3.0.3.i386.rpm ftp://updates.redhat.com/9/en/os/i386/cups-devel-1.1.17-13.3.0.3.i386.rpm ftp://updates.redhat.com/9/en/os/i386/cups-libs-1.1.17-13.3.0.3.i386.rpm 7. Verification: MD5 sum Package Name - - -------------------------------------------------------------------------- b1a11f2d32869f71d81a51699d0d1161 8.0/en/os/SRPMS/cups-1.1.17-0.9.src.rpm 58703f2e272be1f437dc08afdfd56cbf 8.0/en/os/i386/cups-1.1.17-0.9.i386.rpm 0f4fd001995c32f1073170506e551c7f 8.0/en/os/i386/cups-devel-1.1.17-0.9.i386.rpm 51e4409b5ba1c4a36b5c4a9448379d68 8.0/en/os/i386/cups-libs-1.1.17-0.9.i386.rpm 0a0d87d587bc144f43fbc358e7ddc3b0 9/en/os/SRPMS/cups-1.1.17-13.3.0.3.src.rpm 4419de18b94b013ae0ec939ae5bf415b 9/en/os/i386/cups-1.1.17-13.3.0.3.i386.rpm b1af1f42aae099e96e29113e0bab0e6f 9/en/os/i386/cups-devel-1.1.17-13.3.0.3.i386.rpm bef46344f1619d0be4ad0bc6f04dafdf 9/en/os/i386/cups-libs-1.1.17-13.3.0.3.i386.rpm These packages are GPG signed by Red Hat for security. Our key is available from https://www.redhat.com/security/keys.html You can verify each package with the following command: rpm --checksig -v <filename> If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: md5sum <filename> 8. References: http://www.cups.org/str.php?L315+P0+S0+C0+I0+E0+Q http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0788 9. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/solutions/security/news/contact.html Copyright 2003 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQE/ph8gXlSAg2UNWIIRAiuGAJ4pDVFSA4l5EXiESmoAVqfhmDPHdQCeJrsi 5UqixEKtXSqYnZ492V7g+cQ= =B7Na - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBP6buxSh9+71yA2DNAQGmsQP+PtxzRxMrcokmd7UBDHwpjiD66GmlwRL2 YwgFaG5l0f4YZlrn15u7fYbqbdu8fTowXA8HsvegBvAl9wyfL1LZ80pK5DDcHy5+ rdL2vlHerOI9vRrNzQu0+Chx/f1jAif1fJKrtAmKES7Yq9ltsqDyjHtfwzEIAOnh TKKx6tcne98= =+jZa -----END PGP SIGNATURE-----