CVE-2009-2287

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Summary

CVECVE-2009-2287
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-07-01 13:00:01 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe kvm_arch_vcpu_ioctl_set_sregs function in the KVM in Linux kernel 2.6 before 2.6.30, when running on x86 systems, does not validate the page table root in a KVM_SET_SREGS call, which allows local users to cause a denial of service (crash or hang) via a crafted cr3 value, which triggers a NULL pointer dereference in the gfn_to_rmap function.

Risk And Classification

Primary CVSS: v2.0 4.9 from [email protected]

AV:L/AC:L/Au:N/C:N/I:N/A:C

Problem Types: CWE-476 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:L/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 6.06 All All All
Operating System Canonical Ubuntu Linux 8.04 All All All
Operating System Canonical Ubuntu Linux 8.10 All All All
Operating System Canonical Ubuntu Linux 9.04 All All All
Operating System Debian Debian Linux 4.0 All All All
Operating System Debian Debian Linux 5.0 All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Support / Security / Advisories / / MDVSA-2010:198 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com Broken Link
Debian -- Security Information -- DSA-1845-1 linux-2.6 af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
oss-security - CVE Request: kernel: kvm: failure to validate cr3 after KVM_SET_SREGS af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Patch, Third Party Advisory
KVM "kvm_arch_vcpu_ioctl_set_sregs()" Denial of Service - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
Ubuntu update for kernel - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
kvm-x86-check-for-cr3-validity-in-ioctl_set_sregs.patch « queue-2.6.30 - kernel/git/stable/stable-queue.git - Linux kernel stable patch queue af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
SourceForge.net: kernel virtual machine: Detail: 2687641 - EXPLOITABLE failure to validate cr3 after KVM_SET_SREGS af854a3a-2127-422b-91ae-364da2661108 sourceforge.net Third Party Advisory
Debian update for linux-2.6 - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
USN-807-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
kvm-x86-check-for-cr3-validity-in-ioctl_set_sregs.patch « queue-2.6.30 - kernel/git/stable/stable-queue.git - Linux kernel stable patch queue MITRE git.kernel.org
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2009-07-01Tomas HogerNot vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, and 5, and Red Hat Enterprise MRG.

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