CVE-2009-1242
UnknownEPSS 0.47%
Last modified
CVE-2009-1242 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.29.1 |
| Opensuse | Opensuse | 11.0 |
| Opensuse | Opensuse | 11.1 |
| Debian | Debian Linux | 4.0 |
| Debian | Debian Linux | 5.0 |
| Canonical | Ubuntu Linux | 6.06 |
| Canonical | Ubuntu Linux | 8.04 |
| Canonical | Ubuntu Linux | 8.10 |
| Canonical | Ubuntu Linux | 9.04 |
| Fedoraproject | Fedora | 10 |
References
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00002.htmlMailing List, Third Party Advisory
- http://openwall.com/lists/oss-security/2009/04/01/3Mailing List, Patch, Third Party Advisory
- http://patchwork.kernel.org/patch/15549/Patch, Vendor Advisory
- http://secunia.com/advisories/34478Third Party Advisory
- http://secunia.com/advisories/34981Third Party Advisory
- http://secunia.com/advisories/35120Third Party Advisory
- http://secunia.com/advisories/35121Third Party Advisory
- http://secunia.com/advisories/35226Third Party Advisory
- http://secunia.com/advisories/35387Third Party Advisory
- http://secunia.com/advisories/35394Third Party Advisory
- http://secunia.com/advisories/35656Third Party Advisory
- http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-EFER-8585Third Party Advisory
- http://www.debian.org/security/2009/dsa-1787Third Party Advisory
- http://www.debian.org/security/2009/dsa-1800Third Party Advisory
- http://www.securityfocus.com/archive/1/503610/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/34331Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/usn-793-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=502109Issue Tracking, Patch, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49594Third Party Advisory, VDB Entry
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00002.htmlMailing List, Third Party Advisory
- http://openwall.com/lists/oss-security/2009/04/01/3Mailing List, Patch, Third Party Advisory
- http://patchwork.kernel.org/patch/15549/Patch, Vendor Advisory
- http://secunia.com/advisories/34478Third Party Advisory
- http://secunia.com/advisories/34981Third Party Advisory
- http://secunia.com/advisories/35120Third Party Advisory
- http://secunia.com/advisories/35121Third Party Advisory
- http://secunia.com/advisories/35226Third Party Advisory
- http://secunia.com/advisories/35387Third Party Advisory
- http://secunia.com/advisories/35394Third Party Advisory
- http://secunia.com/advisories/35656Third Party Advisory
- http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-EFER-8585Third Party Advisory
- http://www.debian.org/security/2009/dsa-1787Third Party Advisory
- http://www.debian.org/security/2009/dsa-1800Third Party Advisory
- http://www.securityfocus.com/archive/1/503610/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/34331Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/usn-793-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=502109Issue Tracking, Patch, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49594Third Party Advisory, VDB Entry
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2009-1242?
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.
How severe is CVE-2009-1242?
Severity scoring for CVE-2009-1242 is pending analysis. The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.
How do I fix CVE-2009-1242?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2009-1242?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST