CVE-2009-2287

Severity Score

4.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La funciónkvm_arch_vcpu_ioctl_set_sregs en el KVM en el Kernel Linux v2.6 anterior a v2.6.30, ejecutado sobre plataformas x86, no valida la "page table root" (raíz de tabla de páginas) en una llamada KVM_SET_SREGS, lo que permite a usuarios locales provocar una denegación de servicio (cuelgue o caída) a través de un valor cr3 manipulado, lo que lanza un deferencia a puntero NULL en la función gfn_to_rmap.

*Credits: N/A

CVSS Scores

NISTv2 4.9

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-07-01 CVE Reserved
2009-07-01 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (10)

URL	Tag	Source
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	X_refsource_confirm
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=59839dfff5eabca01cc4e20b45797a60a80af8cb	X_refsource_confirm
http://secunia.com/advisories/35675	Broken Link
http://secunia.com/advisories/36045	Broken Link
http://secunia.com/advisories/36054	Broken Link
http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2687641&group_id=180599	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2009/06/30/1	2023-11-07

URL	Date	SRC
http://www.debian.org/security/2009/dsa-1845	2023-11-07
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198	2023-11-07
http://www.ubuntu.com/usn/usn-807-1	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.0 < 2.6.30 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.0 < 2.6.30"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				6.06 Search vendor "Canonical" for product "Ubuntu Linux" and version "6.06"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				8.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "8.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				8.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "8.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				9.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "9.04"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				4.0 Search vendor "Debian" for product "Debian Linux" and version "4.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				5.0 Search vendor "Debian" for product "Debian Linux" and version "5.0"		-		Affected