CVE-2009-2287

Advisory lineage Upstream: 0 Downstream: 2
Modified
Published: 01 Jul 2009, 12:26
Last modified:07 Aug 2024, 05:44

Vulnerability Summary

Overall Risk (default)
low
20/100
CVSS Score
4.9 MEDIUM
v2.0 (nvd)
EPSS Score
0.05% LOW
0% probability -0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Jul 2009, 12:26
Published
Vulnerability first disclosed
07 Aug 2024, 05:44
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.05%• Percentile: 15%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • canonical•ubuntu_linux

    6.06 | 8.04 | 8.10 | 9.04

  • debian•debian_linux

    4.0 | 5.0

  • linux•linux_kernel

    ≥ 2.6.0, < 2.6.30

References (10)