openSUSE Security Update: glibc: Security update to fix various security problems and bugs ______________________________________________________________________________ Announcement ID: openSUSE-SU-2010:0913-1 Rating: important References: #375315 #572188 #592941 #594263 #646960 Cross-References: CVE-2008-1391 CVE-2010-0296 CVE-2010-0830 CVE-2010-3847 CVE-2010-3856 Affected Products: openSUSE 11.2 ______________________________________________________________________________ An update that fixes 5 vulnerabilities is now available. Description: This update of glibc fixes various bugs and security issues: CVE-2010-3847: Decoding of the $ORIGIN special value in various LD_ environment variables allowed local attackers to execute code in context of e.g. setuid root programs, elevating privileges. This issue does not affect SUSE as an assertion triggers before the respective code is executed. The bug was fixed nevertheless. CVE-2010-3856: The LD_AUDIT environment was not pruned during setuid root execution and could load shared libraries from standard system library paths. This could be used by local attackers to inject code into setuid root programs and so elevated privileges. CVE-2010-0830: Integer overflow causing arbitrary code execution in ld.so --verify mode could be induced by a specially crafted binary. CVE-2010-0296: The addmntent() function would not escape the newline character properly, allowing the user to insert arbitrary newlines to the /etc/mtab; if the addmntent() is run by a setuid mount binary that does not do extra input checking, this would allow custom entries to be inserted in /etc/mtab. CVE-2008-1391: The strfmon() function contains an integer overflow vulnerability in width specifiers handling that could be triggered by an attacker that can control the format string passed to strfmon(). Patch Instructions: To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - openSUSE 11.2: zypper in -t patch glibc-3400 To bring your system up-to-date, use "zypper patch". Package List: - openSUSE 11.2 (i586 i686 x86_64): glibc-2.10.1-10.9.1 glibc-devel-2.10.1-10.9.1 - openSUSE 11.2 (i586 x86_64): glibc-html-2.10.1-10.9.1 glibc-i18ndata-2.10.1-10.9.1 glibc-info-2.10.1-10.9.1 glibc-locale-2.10.1-10.9.1 glibc-obsolete-2.10.1-10.9.1 glibc-profile-2.10.1-10.9.1 nscd-2.10.1-10.9.1 - openSUSE 11.2 (x86_64): glibc-32bit-2.10.1-10.9.1 glibc-devel-32bit-2.10.1-10.9.1 glibc-locale-32bit-2.10.1-10.9.1 glibc-profile-32bit-2.10.1-10.9.1 References: http://support.novell.com/security/cve/CVE-2008-1391.html http://support.novell.com/security/cve/CVE-2010-0296.html http://support.novell.com/security/cve/CVE-2010-0830.html http://support.novell.com/security/cve/CVE-2010-3847.html http://support.novell.com/security/cve/CVE-2010-3856.html https://bugzilla.novell.com/375315 https://bugzilla.novell.com/572188 https://bugzilla.novell.com/592941 https://bugzilla.novell.com/594263 https://bugzilla.novell.com/646960