Unrated severityNVD Advisory· Published Apr 6, 2009· Updated Jun 16, 2026
CVE-2009-1242
CVE-2009-1242
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
27- openwall.com/lists/oss-security/2009/04/01/3nvdMailing ListPatchThird Party Advisory
- patchwork.kernel.org/patch/15549/nvdPatchVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2009-06/msg00002.htmlnvdMailing ListThird Party Advisory
- secunia.com/advisories/34478nvdThird Party Advisory
- secunia.com/advisories/34981nvdThird Party Advisory
- secunia.com/advisories/35120nvdThird Party Advisory
- secunia.com/advisories/35121nvdThird Party Advisory
- secunia.com/advisories/35226nvdThird Party Advisory
- secunia.com/advisories/35387nvdThird Party Advisory
- secunia.com/advisories/35394nvdThird Party Advisory
- secunia.com/advisories/35656nvdThird Party Advisory
- vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-EFER-8585nvdThird Party Advisory
- www.debian.org/security/2009/dsa-1787nvdThird Party Advisory
- www.debian.org/security/2009/dsa-1800nvdThird Party Advisory
- www.securityfocus.com/archive/1/503610/100/0/threadednvdThird Party AdvisoryVDB Entry
- www.securityfocus.com/bid/34331nvdThird Party AdvisoryVDB Entry
- www.ubuntu.com/usn/usn-793-1nvdThird Party Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/49594nvdThird Party AdvisoryVDB Entry
- www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.htmlnvdThird Party Advisory
- wiki.rpath.com/Advisories:rPSA-2009-0084nvdBroken Link
- www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1nvdBroken Link
- www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.29-git1.lognvdBroken Link
- www.vupen.com/english/advisories/2009/0924nvdBroken Link
- git.kernel.orgnvd
- www.globalsecuritymag.com/Vigil-nce-Linux-kernel-denial-of%2C20090402%2C8311nvd
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