openSUSE Security Update: logrotate: Multiple security fixes ______________________________________________________________________________ Announcement ID: openSUSE-SU-2011:0536-1 Rating: moderate References: #677336 #679661 #679662 Cross-References: CVE-2011-1098 CVE-2011-1154 CVE-2011-1155 Affected Products: openSUSE 11.4 openSUSE 11.3 ______________________________________________________________________________ An update that fixes three vulnerabilities is now available. Description: This update for logrotate provides the following fixes: * The shred_file function in logrotate might allow context-dependent attackers to execute arbitrary commands via shell metacharacters in a log filename, as demonstrated by a filename that is automatically constructed on the basis of a hostname or virtual machine name (CVE-2011-1154) (bnc#679661) * Race condition in the createOutputFile function in logrotate allows local users to read log data by opening a file before the intended permissions are in place (CVE-2011-1098) (bnc#677336) * The writeState function in logrotate might allow context-dependent attackers to cause a denial of service (rotation outage) via a (1) \n (newline) or (2) \ (backslash) character in a log filename, as demonstrated by a filename that is automatically constructed on the basis of a hostname or virtual machine name (CVE-2011-1155) (bnc#679662) Patch Instructions: To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - openSUSE 11.4: zypper in -t patch logrotate-4580 - openSUSE 11.3: zypper in -t patch logrotate-4580 To bring your system up-to-date, use "zypper patch". Package List: - openSUSE 11.4 (i586 x86_64): logrotate-3.7.9-6.7.1 - openSUSE 11.3 (i586 x86_64): logrotate-3.7.8-7.3.1 References: http://support.novell.com/security/cve/CVE-2011-1098.html http://support.novell.com/security/cve/CVE-2011-1154.html http://support.novell.com/security/cve/CVE-2011-1155.html https://bugzilla.novell.com/677336 https://bugzilla.novell.com/679661 https://bugzilla.novell.com/679662