Description

The install_special_mapping function in mm/mmap.c in the Linux kernel before 2.6.37-rc6 does not make an expected security_file_mmap function call, which allows local users to bypass intended mmap_min_addr restrictions and possibly conduct NULL pointer dereference attacks via a crafted assembly-language application.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=462e635e5b73ba9a4c03913b77138cd57ce4b050

http://openwall.com/lists/oss-security/2010/12/09/12

http://openwall.com/lists/oss-security/2010/12/09/13

http://openwall.com/lists/oss-security/2010/12/10/2

http://openwall.com/lists/oss-security/2010/12/10/3

http://secunia.com/advisories/42570

http://secunia.com/advisories/46397

http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc6

http://www.mandriva.com/security/advisories?name=MDVSA-2011:029

http://www.securityfocus.com/archive/1/520102/100/0/threaded

http://www.securityfocus.com/bid/45323

http://www.vmware.com/security/advisories/VMSA-2011-0012.html

https://bugzilla.redhat.com/show_bug.cgi?id=662189

https://lkml.org/lkml/2010/12/9/222

Details

Risk Information

CVSS v2