--------------------------------------------------------------------- Fedora Legacy Update Advisory Synopsis: Updated lvm package fixes security issue Advisory ID: FLSA:152842 Issue date: 2005-07-24 Product: Red Hat Linux, Fedora Core Keywords: Bugfix CVE Names: CAN-2004-0972 --------------------------------------------------------------------- --------------------------------------------------------------------- 1. Topic: An updated lvm package that fixes a security flaw is now available. LVM is the Linux Logical Volume Manager utilities. 2. Relevant releases/architectures: Red Hat Linux 7.3 - i386 Red Hat Linux 9 - i386 Fedora Core 1 - i386 3. Problem description: A vulnerability has been reported in LVM, which can be exploited by malicious, local users to perform certain actions on a vulnerable system with escalated privileges. The vulnerability is caused due to the "lvmcreate_initrd" script creating temporary files insecurely. This can be exploited via symlink attacks to overwrite arbitrary files on the system with the privileges of the user invoking the vulnerable script. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0972 to this issue. Users of lvm are advised to upgrade to this errata package, which contains a backported patch correcting 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=152842 6. RPMs required: Red Hat Linux 7.3: SRPM: http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/lvm-1.0.3-4.1.legacy.src.rpm i386: http://download.fedoralegacy.org/redhat/7.3/updates/i386/lvm-1.0.3-4.1.legacy.i386.rpm Red Hat Linux 9: SRPM: http://download.fedoralegacy.org/redhat/9/updates/SRPMS/lvm-1.0.3-12.1.legacy.src.rpm i386: http://download.fedoralegacy.org/redhat/9/updates/i386/lvm-1.0.3-12.1.legacy.i386.rpm Fedora Core 1: SRPM: http://download.fedoralegacy.org/fedora/1/updates/SRPMS/lvm-1.0.3-13.1.legacy.src.rpm i386: http://download.fedoralegacy.org/fedora/1/updates/i386/lvm-1.0.3-13.1.legacy.i386.rpm 7. Verification: SHA1 sum Package Name --------------------------------------------------------------------- 2f33b8e68c37dea86b0059275184d366a1bffddf redhat/7.3/updates/i386/lvm-1.0.3-4.1.legacy.i386.rpm a4d6f9581baf72a6facf9ae2184eddc5c22aa562 redhat/7.3/updates/SRPMS/lvm-1.0.3-4.1.legacy.src.rpm 3f66e70eef52374a49d9ab4dc87ec1ada14dec32 redhat/9/updates/i386/lvm-1.0.3-12.1.legacy.i386.rpm 3b852bbe5291bb43910920b51612b087bf8603aa redhat/9/updates/SRPMS/lvm-1.0.3-12.1.legacy.src.rpm 9378ae503e4d43934813b93951160ed705f41cd3 fedora/1/updates/i386/lvm-1.0.3-13.1.legacy.i386.rpm 0d3176879d28e673fc18158d643870b1acf367fd fedora/1/updates/SRPMS/lvm-1.0.3-13.1.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 <filename> 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 <filename> 8. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0972 9. Contact: The Fedora Legacy security contact is <secnotice@xxxxxxxxxxxxxxxx>. More project details at http://www.fedoralegacy.org ---------------------------------------------------------------------
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