CVE-2009-2287

Name: CVE-2009-2287
Creator: NVD / NIST
Published: 2009-07-01T13:00:01.813+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.40%

Last modified Jun 16, 2026

CVE-2009-2287 is a vulnerability of currently unknown severity. The 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

The 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.

Metrics

EPSS Probability

0.40%

31.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 2.6.0, < 2.6.30
Canonical	Ubuntu Linux	6.06
Canonical	Ubuntu Linux	8.04
Canonical	Ubuntu Linux	8.10
Canonical	Ubuntu Linux	9.04
Debian	Debian Linux	4.0
Debian	Debian Linux	5.0

References

http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git%3Ba=blob%3Bf=queue-2.6.30/kvm-x86-check-for-cr3-validity-in-ioctl_set_sregs.patch%3Bh=b48a47dad2cf76358b327368f80c0805e6370c68%3Bhb=e7c45b24f298b5d9efd7d401150f64a1b51aaac4
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=59839dfff5eabca01cc4e20b45797a60a80af8cb
http://secunia.com/advisories/35675Broken Link
http://secunia.com/advisories/36045Broken Link
http://secunia.com/advisories/36054Broken Link
http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2687641&group_id=180599Third Party Advisory
http://www.debian.org/security/2009/dsa-1845Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198Broken Link
http://www.openwall.com/lists/oss-security/2009/06/30/1Mailing List, Patch, Third Party Advisory
http://www.ubuntu.com/usn/usn-807-1Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git%3Ba=blob%3Bf=queue-2.6.30/kvm-x86-check-for-cr3-validity-in-ioctl_set_sregs.patch%3Bh=b48a47dad2cf76358b327368f80c0805e6370c68%3Bhb=e7c45b24f298b5d9efd7d401150f64a1b51aaac4
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=59839dfff5eabca01cc4e20b45797a60a80af8cb
http://secunia.com/advisories/35675Broken Link
http://secunia.com/advisories/36045Broken Link
http://secunia.com/advisories/36054Broken Link
http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2687641&group_id=180599Third Party Advisory
http://www.debian.org/security/2009/dsa-1845Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198Broken Link
http://www.openwall.com/lists/oss-security/2009/06/30/1Mailing List, Patch, Third Party Advisory
http://www.ubuntu.com/usn/usn-807-1Third Party Advisory

Timeline

Published: Jul 1, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-2287?

How severe is CVE-2009-2287?

Severity scoring for CVE-2009-2287 is pending analysis. The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2009-2287?

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-2009-2287?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST