Vulnerability Description
The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS users to cause a denial of service (buffer overflow and host OS memory corruption) or possibly have unspecified other impact via a crafted application.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 3.8.4 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://rhn.redhat.com/errata/RHSA-2013-0727.html
- http://rhn.redhat.com/errata/RHSA-2013-0744.html
- http://rhn.redhat.com/errata/RHSA-2013-0746.html
- http://rhn.redhat.com/errata/RHSA-2013-0928.html
- http://rhn.redhat.com/errata/RHSA-2013-1026.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/03/20/9
- http://www.securityfocus.com/bid/58607
- http://www.ubuntu.com/usn/USN-1805-1
- http://www.ubuntu.com/usn/USN-1808-1
- http://www.ubuntu.com/usn/USN-1809-1
FAQ
What is CVE-2013-1796?
CVE-2013-1796 is a vulnerability with a CVSS score of 6.8 (MEDIUM). The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS us...
How severe is CVE-2013-1796?
CVE-2013-1796 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-1796?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.