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.

CVSS v2.0 4.9 MEDIUM

4.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2687641&group_id=180599	Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/06/30/1	Mailing List Patch Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=59839dfff5eabca01cc4e20b45797a60a80af8cb	Mailing List Patch Vendor Advisory
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	Mailing List Patch Vendor Advisory
http://secunia.com/advisories/35675	Broken Link
http://www.ubuntu.com/usn/usn-807-1	Third Party Advisory
http://secunia.com/advisories/36054	Broken Link
http://secunia.com/advisories/36045	Broken Link
http://www.debian.org/security/2009/dsa-1845	Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198	Broken Link

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	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:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:debian:debian_linux:4.0:::::::*
	cpe:2.3:o:debian:debian_linux:5.0:::::::*

Information

Published : 2009-07-01 06:00

Updated : 2020-08-19 12:41

NVD link : CVE-2009-2287

Mitre link : CVE-2009-2287

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

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Products Affected

debian

debian_linux

canonical

ubuntu_linux

linux

linux_kernel

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