CVE-2009-2287

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.

Published: Jul 1, 2009
Updated: Apr 13, 2023
CVE: CVE-2009-2287
Severity: Low
Exploit:

CVSS v2:

Severity: Low
Score: 4.9
AV:L/AC:L/Au:N/C:N/I:N/A:C

CWEs:

CWE-476

Affected Software
References

Software	From	Fixed in
linux / linux_kernel	2.6.0	2.6.30
canonical / ubuntu_linux	9.04	9.04.x
canonical / ubuntu_linux	8.10	8.10.x
canonical / ubuntu_linux	8.04	8.04.x
canonical / ubuntu_linux	6.06	6.06.x
debian / debian_linux	5.0	5.0.x
debian / debian_linux	4.0	4.0.x

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

Vulnerability Database

CVE-2009-2287