CVE-2009-1242
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
4.4 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
28.1%
The vmx_set_msr function in arch/x86/kvm/vmx.c in the VMX implementation in the KVM subsystem in the Linux kernel before 2.6.29.1 on the i386 platform allows guest OS users to cause a denial of service (OOPS) by setting the EFER_LME (aka “Long mode enable”) bit in the Extended Feature Enable Register (EFER) model-specific register, which is specific to the x86_64 platform.
Affected configurations
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=16175a796d061833aacfbd9672235f2d2725df65
lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
lists.opensuse.org/opensuse-security-announce/2009-06/msg00002.html
openwall.com/lists/oss-security/2009/04/01/3
patchwork.kernel.org/patch/15549/
secunia.com/advisories/34478
secunia.com/advisories/34981
secunia.com/advisories/35120
secunia.com/advisories/35121
secunia.com/advisories/35226
secunia.com/advisories/35387
secunia.com/advisories/35394
secunia.com/advisories/35656
vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-EFER-8585
wiki.rpath.com/Advisories:rPSA-2009-0084
www.debian.org/security/2009/dsa-1787
www.debian.org/security/2009/dsa-1800
www.globalsecuritymag.com/Vigil-nce-Linux-kernel-denial-of%2C20090402%2C8311
www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1
www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.29-git1.log
www.securityfocus.com/archive/1/503610/100/0/threaded
www.securityfocus.com/bid/34331
www.ubuntu.com/usn/usn-793-1
www.vupen.com/english/advisories/2009/0924
bugzilla.redhat.com/show_bug.cgi?id=502109
exchange.xforce.ibmcloud.com/vulnerabilities/49594
www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.html
Related
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
4.4 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
28.1%