CVE-2009-2287

MEDIUM
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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.

References

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/torvalds/linux-2.6.git;a=commitdiff;h=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

Details

Source: MITRE

Published: 2009-07-01

Updated: 2020-08-19

Type: CWE-476

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

Tenable Plugins

View all (6 total)

IDNameProductFamilySeverity
49795Mandriva Linux Security Advisory : kernel (MDVSA-2010:198)NessusMandriva Local Security Checks
critical
49666Mandriva Linux Security Advisory : kernel (MDVSA-2010:188)NessusMandriva Local Security Checks
critical
44711Debian DSA-1846-1 : kvm - denial of serviceNessusDebian Local Security Checks
medium
44710Debian DSA-1845-1 : linux-2.6 - denial of service, privilege escalationNessusDebian Local Security Checks
high
41416SuSE 11 Security Update : KVM (SAT Patch Number 1166)NessusSuSE Local Security Checks
medium
40416Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : linux, linux-source-2.6.15 vulnerabilities (USN-807-1)NessusUbuntu Local Security Checks
high