Linux Kernel kvm_dev_ioctl_get_supported_cpuid() code execution

linux-kernel-supportedcpuid-code-execution (53934) The risk level is classified as HighHigh Risk

Description:

Linux Kernel could allow an attacker to execute arbitrary code on the system, caused by an integer overflow in the KVM (Kernel-based Virtual Machine) kvm_dev_ioctl_get_supported_cpuid() function. An attacker could exploit this vulnerability to execute arbitrary code with elevated privileges.

*CVSS:

Base Score: 4.6
  Access Vector: Local
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 3.4
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Apply the appropriate update for your system. See References.

References:

  • Red Hat Bugzilla Bug 530515: kernel: kvm: integer overflow in kvm_dev_ioctl_get_supported_cpuid().
  • BID-36803: Linux Kernel KVM 'kvm_dev_ioctl_get_supported_cpuid()' Integer Overflow Vulnerability
  • CVE-2009-3638: Integer overflow in the kvm_dev_ioctl_get_supported_cpuid function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.31.4 allows local users to have an unspecified impact via a KVM_GET_SUPPORTED_CPUID request to the kvm_arch_dev_ioctl function.
  • DSA-1927: linux-2.6 -- privilege escalation/denial of service/sensitive memory leak
  • DSA-1962: kvm -- several vulnerabilities
  • MDVSA-2009:329: kernel
  • OSVDB ID: 59475: Linux Kernel KVM Subsystem arch/x86/kvm/x86.c kvm_dev_ioctl_get_supported_cpuid Function Local Overflow
  • USN-864-1: Linux kernel vulnerabilities

Platforms Affected:

  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • Debian Debian Linux 5.0
  • Linux Kernel 2.6.25
  • Linux Kernel 2.6.25.1
  • Linux Kernel 2.6.25.10
  • Linux Kernel 2.6.25.11
  • Linux Kernel 2.6.25.12
  • Linux Kernel 2.6.25.13
  • Linux Kernel 2.6.25.14
  • Linux Kernel 2.6.25.15
  • Linux Kernel 2.6.25.16
  • Linux Kernel 2.6.25.17
  • Linux Kernel 2.6.25.18
  • Linux Kernel 2.6.25.19
  • Linux Kernel 2.6.25.2
  • Linux Kernel 2.6.25.20
  • Linux Kernel 2.6.25.3
  • Linux Kernel 2.6.25.4
  • Linux Kernel 2.6.25.5
  • Linux Kernel 2.6.25.6
  • Linux Kernel 2.6.25.7
  • Linux Kernel 2.6.25.8
  • Linux Kernel 2.6.25.9
  • Linux Kernel 2.6.26 rc6
  • Linux Kernel 2.6.26 rc5-git1
  • Linux Kernel 2.6.26
  • Linux Kernel 2.6.26 rc4
  • Linux Kernel 2.6.26.1
  • Linux Kernel 2.6.26.2
  • Linux Kernel 2.6.26.2 rc4
  • Linux Kernel 2.6.26.3
  • Linux Kernel 2.6.26.4
  • Linux Kernel 2.6.26.5
  • Linux Kernel 2.6.26.6
  • Linux Kernel 2.6.26.7
  • Linux Kernel 2.6.26.8
  • Linux Kernel 2.6.27 rc6-git6
  • Linux Kernel 2.6.27 rc8
  • Linux Kernel 2.6.27 rc8-git5
  • Linux Kernel 2.6.27 rc6
  • Linux Kernel 2.6.27 rc5
  • Linux Kernel 2.6.27 rc2
  • Linux Kernel 2.6.27 rc1
  • Linux Kernel 2.6.27
  • Linux Kernel 2.6.27 rc3
  • Linux Kernel 2.6.27 rc7
  • Linux Kernel 2.6.27 rc4
  • Linux Kernel 2.6.27 rc9
  • Linux Kernel 2.6.27.1
  • Linux Kernel 2.6.27.10
  • Linux Kernel 2.6.27.11
  • Linux Kernel 2.6.27.12
  • Linux Kernel 2.6.27.13
  • Linux Kernel 2.6.27.14
  • Linux Kernel 2.6.27.15
  • Linux Kernel 2.6.27.16
  • Linux Kernel 2.6.27.17
  • Linux Kernel 2.6.27.18
  • Linux Kernel 2.6.27.19
  • Linux Kernel 2.6.27.2
  • Linux Kernel 2.6.27.20
  • Linux Kernel 2.6.27.21
  • Linux Kernel 2.6.27.22
  • Linux Kernel 2.6.27.23
  • Linux Kernel 2.6.27.24
  • Linux Kernel 2.6.27.25
  • Linux Kernel 2.6.27.26
  • Linux Kernel 2.6.27.27
  • Linux Kernel 2.6.27.28
  • Linux Kernel 2.6.27.29
  • Linux Kernel 2.6.27.3
  • Linux Kernel 2.6.27.30
  • Linux Kernel 2.6.27.31
  • Linux Kernel 2.6.27.32
  • Linux Kernel 2.6.27.33
  • Linux Kernel 2.6.27.34
  • Linux Kernel 2.6.27.35
  • Linux Kernel 2.6.27.36
  • Linux Kernel 2.6.27.37
  • Linux Kernel 2.6.27.4
  • Linux Kernel 2.6.27.5
  • Linux Kernel 2.6.27.6
  • Linux Kernel 2.6.27.7
  • Linux Kernel 2.6.27.8
  • Linux Kernel 2.6.27.9
  • Linux Kernel 2.6.28 rc4
  • Linux Kernel 2.6.28 rc7
  • Linux Kernel 2.6.28 git7
  • Linux Kernel 2.6.28
  • Linux Kernel 2.6.28 rc5
  • Linux Kernel 2.6.28 rc1
  • Linux Kernel 2.6.28 rc6
  • Linux Kernel 2.6.28 rc2
  • Linux Kernel 2.6.28 rc3
  • Linux Kernel 2.6.28 Rc1
  • Linux Kernel 2.6.28.1
  • Linux Kernel 2.6.28.10
  • Linux Kernel 2.6.28.2
  • Linux Kernel 2.6.28.3
  • Linux Kernel 2.6.28.4
  • Linux Kernel 2.6.28.5
  • Linux Kernel 2.6.28.6
  • Linux Kernel 2.6.28.7
  • Linux Kernel 2.6.28.8
  • Linux Kernel 2.6.28.9
  • Linux Kernel 2.6.29 rc1
  • Linux Kernel 2.6.29 git1
  • Linux Kernel 2.6.29
  • Linux Kernel 2.6.29 rc8-KK
  • Linux Kernel 2.6.29 rc2 Git7
  • Linux Kernel 2.6.29 rc2-git1
  • Linux Kernel 2.6.29 rc2
  • Linux Kernel 2.6.29.1
  • Linux Kernel 2.6.29.2
  • Linux Kernel 2.6.29.3
  • Linux Kernel 2.6.29.4
  • Linux Kernel 2.6.29.5
  • Linux Kernel 2.6.29.6
  • Linux Kernel 2.6.29.Rc1
  • Linux Kernel 2.6.29.Rc2
  • Linux Kernel 2.6.29.Rc2 Git1
  • Linux Kernel 2.6.3 rc4
  • Linux Kernel 2.6.3 rc3
  • Linux Kernel 2.6.3 rc2
  • Linux Kernel 2.6.3 rc1
  • Linux Kernel 2.6.3
  • Linux Kernel 2.6.30 rc6
  • Linux Kernel 2.6.30 rc4 x86 32
  • Linux Kernel 2.6.30 rc3
  • Linux Kernel 2.6.30 rc1
  • Linux Kernel 2.6.30 rc5
  • Linux Kernel 2.6.30 rc2
  • Linux Kernel 2.6.30 rc7-Git6
  • Linux Kernel 2.6.30
  • Linux Kernel 2.6.30.1
  • Linux Kernel 2.6.30.2
  • Linux Kernel 2.6.30.3
  • Linux Kernel 2.6.30.4
  • Linux Kernel 2.6.30.5
  • Linux Kernel 2.6.30.6
  • Linux Kernel 2.6.30.7
  • Linux Kernel 2.6.30.8
  • Linux Kernel 2.6.30.9
  • Linux Kernel 2.6.31 rc6
  • Linux Kernel 2.6.31 rc7
  • Linux Kernel 2.6.31
  • Linux Kernel 2.6.31 rc8
  • Linux Kernel 2.6.31 rc3
  • Linux Kernel 2.6.31 rc1
  • Linux Kernel 2.6.31 rc2
  • Linux Kernel 2.6.31 rc4
  • Linux Kernel 2.6.31 rc5
  • Linux Kernel 2.6.31 Rc10
  • Linux Kernel 2.6.31 Rc2
  • Linux Kernel 2.6.31 Rc3
  • Linux Kernel 2.6.31 Rc4
  • Linux Kernel 2.6.31 Rc5
  • Linux Kernel 2.6.31 Rc6
  • Linux Kernel 2.6.31 Rc7
  • Linux Kernel 2.6.31 Rc8
  • Linux Kernel 2.6.31 Rc9
  • Linux Kernel 2.6.31.1
  • Linux Kernel 2.6.31.2
  • Mandriva Linux 2009.1
  • Mandriva Linux 2009.1 X86_64
  • Mandriva Linux 2010 X86_64
  • Mandriva Linux 2010

Reported:

Oct 23, 2009

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