1.9 Low
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:N/I:N/A:P
0.0004 Low
EPSS
Percentile
5.2%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 11.10 | noarch | linux | < 3.0.0-30.47 | UNKNOWN |
ubuntu | 12.04 | noarch | linux | < 3.2.0-36.57 | UNKNOWN |
ubuntu | 12.10 | noarch | linux | < 3.5.0-22.34 | UNKNOWN |
ubuntu | 10.04 | noarch | linux-lts-backport-oneiric | < 3.0.0-30.47~lucid1 | UNKNOWN |
ubuntu | 12.04 | noarch | linux-lts-quantal | < 3.5.0-22.34~precise1 | UNKNOWN |
article.gmane.org/gmane.comp.emulators.kvm.devel/100742
www.openwall.com/lists/oss-security/2012/11/06/14
launchpad.net/bugs/cve/CVE-2012-4461
nvd.nist.gov/vuln/detail/CVE-2012-4461
security-tracker.debian.org/tracker/CVE-2012-4461
ubuntu.com/security/notices/USN-1688-1
ubuntu.com/security/notices/USN-1689-1
ubuntu.com/security/notices/USN-1696-1
ubuntu.com/security/notices/USN-1699-1
ubuntu.com/security/notices/USN-1704-1
www.cve.org/CVERecord?id=CVE-2012-4461