vulnwire
4.9med

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…

Published 17 y ago · modified 4 mo ago · JSON

CVSS
4.9
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 34%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

0.40% probability of exploitation in the next 30 days, higher than 34% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.04.9AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • secunia.com /advisories/35675 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • mandriva.com /security/advisories?name=MDVSA-2010:198 · vendor-advisory, x_refsource_MANDRIVA, x_transferred
  • ubuntu.com /usn/usn-807-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=59839dfff5eabca01cc4e20b457 · x_refsource_CONFIRM, x_transferred
  • sourceforge.net /tracker/?func=detail&atid=893831&aid=2687641&group_id=180599 · x_refsource_CONFIRM, x_transferred
  • secunia.com /advisories/36045 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • secunia.com /advisories/36054 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • debian.org /security/2009/dsa-1845 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • openwall.com /lists/oss-security/2009/06/30/1 · mailing-list, x_refsource_MLIST, x_transferred
  • git.kernel.org /?p=linux/kernel/git/stable/stable-queue.git%3Ba=blob%3Bf=queue-2.6.30/kvm-x86-check-for-c · x_refsource_CONFIRM, x_transferred

Sources

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