Description
The IA32 system call emulation functionality in Linux kernel 2.4.x and 2.6.x before 2.6.22.7, when running on the x86_64 architecture, does not zero extend the eax register after the 32bit entry path to ptrace is used, which might allow local users to gain privileges by triggering an out-of-bounds access to the system call table using the %RAX register.
Exploits
44602007-09-27localLinux_x86-64
Linux Kernel 2.4/2.6 (x86-64) - System Call Emulation Privilege Escalation
By Robert Swiecki
References
secalert@redhat.com
http://fedoranews.org/updates/FEDORA-2007-229.shtmlsecalert@redhat.com
http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3secalert@redhat.com
http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.htmlsecalert@redhat.com
http://lkml.org/lkml/2007/9/21/512secalert@redhat.com
http://lkml.org/lkml/2007/9/21/513secalert@redhat.com
http://marc.info/?l=full-disclosure&m=119062587407908&w=2secalert@redhat.com
http://secunia.com/advisories/26917secalert@redhat.com
http://secunia.com/advisories/26919secalert@redhat.com
http://secunia.com/advisories/26934secalert@redhat.com
http://secunia.com/advisories/26953secalert@redhat.com
http://secunia.com/advisories/26955secalert@redhat.com
http://secunia.com/advisories/26978secalert@redhat.com
http://secunia.com/advisories/26994secalert@redhat.com
http://secunia.com/advisories/26995secalert@redhat.com
http://secunia.com/advisories/27212secalert@redhat.com
http://secunia.com/advisories/27227secalert@redhat.com
http://secunia.com/advisories/27912secalert@redhat.com
http://secunia.com/advisories/29058secalert@redhat.com
http://securitytracker.com/id?1018748secalert@redhat.com
http://www.debian.org/security/2007/dsa-1378secalert@redhat.com
http://www.debian.org/security/2007/dsa-1381secalert@redhat.com
http://www.debian.org/security/2008/dsa-1504secalert@redhat.com
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7secalert@redhat.com
http://www.mandriva.com/security/advisories?name=MDKSA-2007:195secalert@redhat.com
http://www.mandriva.com/security/advisories?name=MDKSA-2007:196secalert@redhat.com
http://www.mandriva.com/security/advisories?name=MDVSA-2008:008secalert@redhat.com
http://www.mandriva.com/security/advisories?name=MDVSA-2008:105secalert@redhat.com
http://www.novell.com/linux/security/advisories/2007_53_kernel.htmlsecalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2007-0936.htmlsecalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2007-0937.htmlsecalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2007-0938.htmlsecalert@redhat.com
http://www.securityfocus.com/archive/1/480451/100/0/threadedsecalert@redhat.com
http://www.securityfocus.com/archive/1/480705/100/0/threadedsecalert@redhat.com
http://www.securityfocus.com/bid/25774secalert@redhat.com
http://www.ubuntu.com/usn/usn-518-1secalert@redhat.com
http://www.vupen.com/english/advisories/2007/3246secalert@redhat.com
https://issues.rpath.com/browse/RPL-1754secalert@redhat.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9735secalert@redhat.com
https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00355.htmlaf854a3a-2127-422b-91ae-364da2661108
http://fedoranews.org/updates/FEDORA-2007-229.shtmlaf854a3a-2127-422b-91ae-364da2661108
http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.htmlaf854a3a-2127-422b-91ae-364da2661108
http://lkml.org/lkml/2007/9/21/512af854a3a-2127-422b-91ae-364da2661108
http://lkml.org/lkml/2007/9/21/513af854a3a-2127-422b-91ae-364da2661108
http://marc.info/?l=full-disclosure&m=119062587407908&w=2af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26917af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26919af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26934af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26953af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26955af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26978af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26994af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26995af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/27212af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/27227af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/27912af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/29058af854a3a-2127-422b-91ae-364da2661108
http://securitytracker.com/id?1018748af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2007/dsa-1378af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2007/dsa-1381af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2008/dsa-1504af854a3a-2127-422b-91ae-364da2661108
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7af854a3a-2127-422b-91ae-364da2661108
http://www.mandriva.com/security/advisories?name=MDKSA-2007:195af854a3a-2127-422b-91ae-364da2661108
http://www.mandriva.com/security/advisories?name=MDKSA-2007:196af854a3a-2127-422b-91ae-364da2661108
http://www.mandriva.com/security/advisories?name=MDVSA-2008:008af854a3a-2127-422b-91ae-364da2661108
http://www.mandriva.com/security/advisories?name=MDVSA-2008:105af854a3a-2127-422b-91ae-364da2661108
http://www.novell.com/linux/security/advisories/2007_53_kernel.htmlaf854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2007-0936.htmlaf854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2007-0937.htmlaf854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2007-0938.htmlaf854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/archive/1/480451/100/0/threadedaf854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/archive/1/480705/100/0/threadedaf854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/25774af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/usn-518-1af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2007/3246af854a3a-2127-422b-91ae-364da2661108
https://issues.rpath.com/browse/RPL-1754af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9735af854a3a-2127-422b-91ae-364da2661108
https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00355.html