CVE-2012-4461

Linux Kernel < 3.6.9 - Denial of Service via KVM_SET_SREGS and KVM_RUN ioctl

Title source: llm
STIX 2.1

Description

The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.

References (11)

Core 11
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2013-0223.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/56414
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=862900
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2013-0882.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/51160
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2012/11/06/14

Scores

EPSS 0.0036
EPSS Percentile 28.4%

Details

Status published
Products (9)
linux/linux_kernel 3.6
linux/linux_kernel 3.6.1
linux/linux_kernel 3.6.2
linux/linux_kernel 3.6.3
linux/linux_kernel 3.6.4
linux/linux_kernel 3.6.5
linux/linux_kernel 3.6.6
linux/linux_kernel 3.6.7
linux/linux_kernel < 3.6.8
Published Jan 22, 2013
Tracked Since Feb 18, 2026