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Red Hat Enterprise Linux 5: RHSA-2010:0458-02 Moderate Perl Security Update

Updated perl packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate [More...]. ==================================================================== Red Hat Security Advisory Synopsis: Moderate: perl security update Advisory ID: RHSA-2010:0458-02 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2010:0458.html Issue date: 2010-06-07 CVE Names: CVE-2008-5302 CVE-2008-5303 CVE-2010-1168 CVE-2010-1447 ==================================================================== 1. Summary: Updated perl packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: 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: Perl is a high-level programming language commonly used for system administration utilities and web programming. The Safe extension module allows users to compile and execute Perl code in restricted compartments. The File::Path module allows users to create and remove directory trees. The Safe module did not properly restrict the code of implicitly called methods (such as DESTROY and AUTOLOAD) on implicitly blessed objects returned as a result of unsafe code evaluation. These methods could have been executed unrestricted by Safe when such objects were accessed or destroyed. A specially-crafted Perl script executed inside of a Safe compartment could use this flaw to bypass intended Safe module restrictions. (CVE-2010-1168) The Safe module did notproperly restrict code compiled in a Safe compartment and executed out of the compartment via a subroutine reference returned as a result of unsafe code evaluation. A specially-crafted Perl script executed inside of a Safe compartment could use this flaw to bypass intended Safe module restrictions, if the returned subroutine reference was called from outside of the compartment. (CVE-2010-1447) Multiple race conditions were found in the way the File::Path module's rmtree function removed directory trees. A malicious, local user with write access to a directory being removed by a victim, running a Perl script using rmtree, could cause the permissions of arbitrary files to be changed to world-writable and setuid, or delete arbitrary files via a symbolic link attack, if the victim had the privileges to change the permissions of the target files or to remove them. (CVE-2008-5302, CVE-2008-5303) Red Hat would like to thank Tim Bunce for responsibly reporting the CVE-2010-1168 and CVE-2010-1447 issues. Upstream acknowledges Nick Cleaton as the original reporter of CVE-2010-1168, and Tim Bunce and Rafa . The latest security patch for Perl on Red Hat Enterprise Linux addresses multiple vulnerabilities that pose risks to system integrity.. perl security update, Red Hat Enterprise Linux, moderate advisory. . LinuxSecurity.com Team

Jun 07, 2010 Red Hat