The audit_syscall_entry function in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass certain syscall audit configurations via crafted syscalls, a related issue to CVE-2009-0342 and CVE-2009-0343.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9600
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8508
https://exchange.xforce.ibmcloud.com/vulnerabilities/49061
https://bugzilla.redhat.com/show_bug.cgi?id=487990
http://www.vupen.com/english/advisories/2009/3316
http://www.vmware.com/security/advisories/VMSA-2009-0016.html
http://www.ubuntu.com/usn/usn-751-1
http://www.securitytracker.com/id?1022153
http://www.securityfocus.com/bid/33951
http://www.securityfocus.com/archive/1/507985/100/0/threaded
http://www.securityfocus.com/archive/1/503610/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2009-0451.html
http://www.mandriva.com/security/advisories?name=MDVSA-2009:118
http://www.debian.org/security/2009/dsa-1800
http://www.debian.org/security/2009/dsa-1794
http://www.debian.org/security/2009/dsa-1787
http://secunia.com/advisories/37471
http://secunia.com/advisories/35394
http://secunia.com/advisories/35390
http://secunia.com/advisories/35185
http://secunia.com/advisories/35121
http://secunia.com/advisories/35120
http://secunia.com/advisories/35015
http://secunia.com/advisories/35011
http://secunia.com/advisories/34981
http://secunia.com/advisories/34962
http://secunia.com/advisories/34917
http://secunia.com/advisories/34084
http://scary.beasts.org/security/CESA-2009-001.html
http://rhn.redhat.com/errata/RHSA-2009-0473.html
http://rhn.redhat.com/errata/RHSA-2009-0459.html
http://marc.info/?l=oss-security&m=123597642832637&w=2
http://marc.info/?l=linux-kernel&m=123579065130246&w=2
http://marc.info/?l=linux-kernel&m=123579056530191&w=2
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html