Description

The KVM subsystem in the Linux kernel before 3.0 does not check whether kernel addresses are specified during allocation of memory slots for use in a guest's physical address space, which allows local users to gain privileges or obtain sensitive information from kernel memory via a crafted application, related to arch/x86/kvm/paging_tmpl.h and virt/kvm/kvm_main.c.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fa3d315a4ce2c0891cdde262562e710d95fba19e

http://web.archive.org/web/20130329070349/http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0

http://www.ubuntu.com/usn/USN-1939-1

https://bugzilla.redhat.com/show_bug.cgi?id=950490

https://github.com/torvalds/linux/commit/fa3d315a4ce2c0891cdde262562e710d95fba19e

Details

Risk Information

CVSS v2

CVSS v3