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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0207 Low: cups security and bug fix update 22 February 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: cups Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2011-2896 Reference: ESB-2011.1211 ESB-2011.1183 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-0302.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Low: cups security and bug fix update Advisory ID: RHSA-2012:0302-03 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0302.html Issue date: 2012-02-21 CVE Names: CVE-2011-2896 ===================================================================== 1. Summary: Updated cups packages that fix one security issue and various bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: The Common UNIX Printing System (CUPS) provides a portable printing layer for Linux, UNIX, and similar operating systems. A heap-based buffer overflow flaw was found in the Lempel-Ziv-Welch (LZW) decompression algorithm implementation used by the CUPS GIF image format reader. An attacker could create a malicious GIF image file that, when printed, could possibly cause CUPS to crash or, potentially, execute arbitrary code with the privileges of the "lp" user. (CVE-2011-2896) This update also fixes the following bugs: * Prior to this update, the "Show Completed Jobs," "Show All Jobs," and "Show Active Jobs" buttons returned results globally across all printers and not the results for the specified printer. With this update, jobs from only the selected printer are shown. (BZ#625900) * Prior to this update, the code of the serial backend contained a wrong condition. As a consequence, print jobs on the raw print queue could not be canceled. This update modifies the condition in the serial backend code. Now, the user can cancel these print jobs. (BZ#625955) * Prior to this update, the textonly filter did not work if used as a pipe, for example when the command line did not specify the filename and the number of copies was always 1. This update modifies the condition in the textonly filter. Now, the data are sent to the printer regardless of the number of copies specified. (BZ#660518) * Prior to this update, the file descriptor count increased until it ran out of resources when the cups daemon was running with enabled Security-Enhanced Linux (SELinux) features. With this update, all resources are allocated only once. (BZ#668009) * Prior to this update, CUPS incorrectly handled the en_US.ASCII value for the LANG environment variable. As a consequence, the lpadmin, lpstat, and lpinfo binaries failed to write to standard output if using LANG with the value. This update fixes the handling of the en_US.ASCII value and the binaries now write to standard output properly. (BZ#759081) All users of cups are advised to upgrade to these updated packages, which contain backported patches to resolve these issues. After installing this update, the cupsd daemon will be restarted automatically. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 625900 - STR #3436: Jobs buttons not working correctly when viewing a specific printer 625955 - Serial back end has inverted SIGTERM block 660518 - textonly filter won't work as a pipe with copies=1 668009 - avc calls leak file descriptors 727800 - CVE-2011-2896 David Koblas' GIF decoder LZW decoder buffer overflow 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/cups-1.3.7-30.el5.src.rpm i386: cups-1.3.7-30.el5.i386.rpm cups-debuginfo-1.3.7-30.el5.i386.rpm cups-libs-1.3.7-30.el5.i386.rpm cups-lpd-1.3.7-30.el5.i386.rpm x86_64: cups-1.3.7-30.el5.x86_64.rpm cups-debuginfo-1.3.7-30.el5.i386.rpm cups-debuginfo-1.3.7-30.el5.x86_64.rpm cups-libs-1.3.7-30.el5.i386.rpm cups-libs-1.3.7-30.el5.x86_64.rpm cups-lpd-1.3.7-30.el5.x86_64.rpm RHEL Desktop Workstation (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/cups-1.3.7-30.el5.src.rpm i386: cups-debuginfo-1.3.7-30.el5.i386.rpm cups-devel-1.3.7-30.el5.i386.rpm x86_64: cups-debuginfo-1.3.7-30.el5.i386.rpm cups-debuginfo-1.3.7-30.el5.x86_64.rpm cups-devel-1.3.7-30.el5.i386.rpm cups-devel-1.3.7-30.el5.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/cups-1.3.7-30.el5.src.rpm i386: cups-1.3.7-30.el5.i386.rpm cups-debuginfo-1.3.7-30.el5.i386.rpm cups-devel-1.3.7-30.el5.i386.rpm cups-libs-1.3.7-30.el5.i386.rpm cups-lpd-1.3.7-30.el5.i386.rpm ia64: cups-1.3.7-30.el5.ia64.rpm cups-debuginfo-1.3.7-30.el5.i386.rpm cups-debuginfo-1.3.7-30.el5.ia64.rpm cups-devel-1.3.7-30.el5.ia64.rpm cups-libs-1.3.7-30.el5.i386.rpm cups-libs-1.3.7-30.el5.ia64.rpm cups-lpd-1.3.7-30.el5.ia64.rpm ppc: cups-1.3.7-30.el5.ppc.rpm cups-debuginfo-1.3.7-30.el5.ppc.rpm cups-debuginfo-1.3.7-30.el5.ppc64.rpm cups-devel-1.3.7-30.el5.ppc.rpm cups-devel-1.3.7-30.el5.ppc64.rpm cups-libs-1.3.7-30.el5.ppc.rpm cups-libs-1.3.7-30.el5.ppc64.rpm cups-lpd-1.3.7-30.el5.ppc.rpm s390x: cups-1.3.7-30.el5.s390x.rpm cups-debuginfo-1.3.7-30.el5.s390.rpm cups-debuginfo-1.3.7-30.el5.s390x.rpm cups-devel-1.3.7-30.el5.s390.rpm cups-devel-1.3.7-30.el5.s390x.rpm cups-libs-1.3.7-30.el5.s390.rpm cups-libs-1.3.7-30.el5.s390x.rpm cups-lpd-1.3.7-30.el5.s390x.rpm x86_64: cups-1.3.7-30.el5.x86_64.rpm cups-debuginfo-1.3.7-30.el5.i386.rpm cups-debuginfo-1.3.7-30.el5.x86_64.rpm cups-devel-1.3.7-30.el5.i386.rpm cups-devel-1.3.7-30.el5.x86_64.rpm cups-libs-1.3.7-30.el5.i386.rpm cups-libs-1.3.7-30.el5.x86_64.rpm cups-lpd-1.3.7-30.el5.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-2896.html https://access.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPQyUZXlSAg2UNWIIRAmioAJ9gBk6Poy7RE22h7TKkzGLF98r4AACdFi4C 4f1Ci++Q+rq+4dall0u/lSw= =YJGy - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. 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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 iQIVAwUBT0R52+4yVqjM2NGpAQIXhw//Sy+O9arqZsOCyUP8ISwwHJiPPju5FzDk UFfOY4LUnNs8oTmpcKVWcmTSlJ3KPfEMQFG87+TduwPzIXcAs41OHA+x0/Dc71qy TFqUNyuMApshWhD04tBr+UgYrUxSOmg0QNPUUDU8emH/3u/25kJmS1FUuoy0zduK jEVsyH0dDinagpNvv2VRnQds8u1e42sj51kUqUXFxECSpXWmXLqW/ECGCl+5lW/V tRqhk0oE7JvtRKd4nG3HsC/z1MvZW+qQ0GSJw3uajh91ntdoIKqjaGyzIYzUI6Ok z16heu8PZg20saG/UHT23IZEmBbNkOJzRTK9m7m1oDY/fJAW/7cH7uakq2ZeWHMp cwW07jxYSyNcMpzXxQnG1QhdeyhcW4JMDmjkuVFvp+Xq5WQ57nhyLBxDkp/a7DCs xRlJ/4o8ofOxXkzXT30iUwZD93BkrYTU8k/ZZoPrEHC1LnvPQIeX1S/7Dx5pfZz2 j12WX+tz4c/FXKqN7oT1fld+M+H/pGqI9zsJBP1Bg5kKu1copfz2DhdKBFtVVCrv kgZainWcczCZ/poKxPVyi60PAm5ixzJAOhRHJs8KsBhmvl4pba9+se61tOShoZSl AY47HmmekCm6NoxnGtNZ9b/LQq6LKb0pWJfQOMRCvr/Z6ffP2XMJ65zPQnqDhlnB 0R7KjlBjx58= =4Xsy -----END PGP SIGNATURE-----