CVEvulnerability
CVE-2009-4031
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2009-11-29
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-20
Description
The do_insn_fetch function in arch/x86/kvm/emulate.c in the x86 emulator in the KVM subsystem in the Linux kernel before 2.6.32-rc8-next-20091125 tries to interpret instructions that contain too many bytes to be valid, which allows guest OS users to cause a denial of service (increased scheduling latency) on the host OS via unspecified manipulations related to SMP support.
Affected configurations
• linux linux kernel (< 2.6.32)
• linux linux kernel 2.6.32
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88 git.kernel.org
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html Third Party Advisory
- http://secunia.com/advisories/37720 Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2009/11/25/1 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2009/11/25/3 Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/37130 Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=541160 Issue Tracking, Third Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089 Third Party Advisory
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88 git.kernel.org
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html Third Party Advisory
- http://secunia.com/advisories/37720 Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2009/11/25/1 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2009/11/25/3 Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/37130 Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=541160 Issue Tracking, Third Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089 Third Party Advisory
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html Third Party Advisory