Vulnerability Description
The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Suse | Linux Enterprise Real Time Extension | 11.0 |
| Opensuse | Evergreen | 11.4 |
| Suse | Linux Enterprise Server | 11 |
| Suse | Suse Linux Enterprise Server | 11 |
| Canonical | Ubuntu Linux | 12.04 |
| Linux | Linux Kernel | <= 3.16.1 |
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/2015-03/msg00010.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlThird Party Advisory
- http://secunia.com/advisories/60830
- http://www.securityfocus.com/bid/69489
- http://www.ubuntu.com/usn/USN-2356-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2357-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2358-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2359-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1131951Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95689
- https://github.com/torvalds/linux/commit/350b8bdd689cd2ab2c67c8a86a0be86cfa0751aExploitPatch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.htmlThird Party Advisory
FAQ
What is CVE-2014-3601?
CVE-2014-3601 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) c...
How severe is CVE-2014-3601?
CVE-2014-3601 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-3601?
Check the references section above for vendor advisories and patch information. Affected products include: Suse Linux Enterprise Real Time Extension, Opensuse Evergreen, Suse Linux Enterprise Server, Suse Suse Linux Enterprise Server, Canonical Ubuntu Linux.