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Vulnerability Details : 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.
Publish Date : 2009-07-01 Last Update Date : 2020-08-19
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- CVSS Scores & Vulnerability Types

CVSS Score
4.9
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 476

- Vendor Statements

Not 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.
Source: Redhat

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-2287 oval:org.opensuse.security:def:20092287 unix
DSA-1845 linux-2.6 -- denial of service, privilege escalation oval:org.mitre.oval:def:7036 unix
DSA-1845-1 linux-2.6 -- denial of service, privilege escalation oval:org.mitre.oval:def:13534 unix
DSA-1846 kvm -- denial of service oval:org.mitre.oval:def:7263 unix
DSA-1846-1 kvm -- denial of service oval:org.mitre.oval:def:13341 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-2287

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 6.06 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 8.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 8.10 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 9.04 * * * Version Details Vulnerabilities
5 OS Debian Debian Linux 4.0 * * * Version Details Vulnerabilities
6 OS Debian Debian Linux 5.0 * * * Version Details Vulnerabilities
7 OS Linux Linux Kernel * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Debian Debian Linux 2
Linux Linux Kernel 1

- References For CVE-2009-2287

http://secunia.com/advisories/36054
SECUNIA 36054
http://secunia.com/advisories/36045
SECUNIA 36045
http://www.ubuntu.com/usn/usn-807-1
UBUNTU USN-807-1
http://secunia.com/advisories/35675
SECUNIA 35675
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 CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=59839dfff5eabca01cc4e20b45797a60a80af8cb CONFIRM
http://www.openwall.com/lists/oss-security/2009/06/30/1
MLIST [oss-security] 20090630 CVE Request: kernel: kvm: failure to validate cr3 after KVM_SET_SREGS
http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2687641&group_id=180599 CONFIRM
http://www.debian.org/security/2009/dsa-1845
DEBIAN DSA-1845
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
MANDRIVA MDVSA-2010:198

- Metasploit Modules Related To CVE-2009-2287

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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