From marcdeslauriers@videotron.ca Sun Dec 18 11:30:48 2005 From: Marc Deslauriers To: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk Date: Sun, 18 Dec 2005 00:14:39 -0500 Subject: [Full-disclosure] [FLSA-2005:152870] Updated a2ps package fixes security issue --------------------------------------------------------------------- Fedora Legacy Update Advisory Synopsis: Updated a2ps package fixes security issue Advisory ID: FLSA:152870 Issue date: 2005-12-17 Product: Red Hat Linux, Fedora Core Keywords: Bugfix CVE Names: CVE-2004-1170 --------------------------------------------------------------------- --------------------------------------------------------------------- 1. Topic: An updated a2ps package that fixes a security bug is now available. The a2ps filter converts text and other types of files to PostScript format. 2. Relevant releases/architectures: Red Hat Linux 7.3 - i386 Red Hat Linux 9 - i386 Fedora Core 1 - i386 3. Problem description: A problem was discovered in the way a2ps handles filenames that include shell metacharacters. An attacker could use this flaw to execute arbitrary commands by providing a filename that includes metacharacters as an argument. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1170 to this issue. All users of a2ps should upgrade to this updated package, which includes a patch to correct this issue. 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 yum and apt. Many people find this an easier way to apply updates. To use yum issue: yum update or to use apt: apt-get update; apt-get upgrade This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. This assumes that you have yum or apt-get configured for obtaining Fedora Legacy content. Please visit http://www.fedoralegacy.org/docs for directions on how to configure yum and apt-get. 5. Bug IDs fixed: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=152870 6. RPMs required: Red Hat Linux 7.3: SRPM: http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/a2ps-4.13b-19.2.legacy.src.rpm i386: http://download.fedoralegacy.org/redhat/7.3/updates/i386/a2ps-4.13b-19.2.legacy.i386.rpm Red Hat Linux 9: SRPM: http://download.fedoralegacy.org/redhat/9/updates/SRPMS/a2ps-4.13b-28.2.legacy.src.rpm i386: http://download.fedoralegacy.org/redhat/9/updates/i386/a2ps-4.13b-28.2.legacy.i386.rpm Fedora Core 1: SRPM: http://download.fedoralegacy.org/fedora/1/updates/SRPMS/a2ps-4.13b-30.2.legacy.src.rpm i386: http://download.fedoralegacy.org/fedora/1/updates/i386/a2ps-4.13b-30.2.legacy.i386.rpm 7. Verification: SHA1 sum Package Name --------------------------------------------------------------------- b0ebb139fd78a887831f8528458d969c42841283 redhat/7.3/updates/i386/a2ps-4.13b-19.2.legacy.i386.rpm fb55530b7f25e02080fcd8c5126f9f5f042a5d43 redhat/7.3/updates/SRPMS/a2ps-4.13b-19.2.legacy.src.rpm 828dc69302ec1530ada589842da023e3eb796ab5 redhat/9/updates/i386/a2ps-4.13b-28.2.legacy.i386.rpm 8b3ef7ab2dca9d436fb34b2d11935921842c2779 redhat/9/updates/SRPMS/a2ps-4.13b-28.2.legacy.src.rpm 87a14c8ceafcc6e633430ed3715a9d63c3c9e837 fedora/1/updates/i386/a2ps-4.13b-30.2.legacy.i386.rpm 9426b2180ef3750090b05616daa776f88bbfb3fa fedora/1/updates/SRPMS/a2ps-4.13b-30.2.legacy.src.rpm These packages are GPG signed by Fedora Legacy for security. Our key is available from http://www.fedoralegacy.org/about/security.php You can verify each package with the following command: rpm --checksig -v If you only wish to verify that each package has not been corrupted or tampered with, examine only the sha1sum with the following command: sha1sum 8. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1170 9. Contact: The Fedora Legacy security contact is . More project details at http://www.fedoralegacy.org --------------------------------------------------------------------- [ Part 1.2, "OpenPGP digital signature" Application/PGP-SIGNATURE ] [ 196bytes. ] [ Unable to print this part. ] [ Part 2: "Attached Text" ] _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/