Vulnerability Description
The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.17.2 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to cause a denial of service (host OS page unpinning) or possibly have unspecified other impact by leveraging guest OS privileges. NOTE: this vulnerability exists because of an incorrect fix for CVE-2014-3601.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 3.17.2 |
| Debian | Debian Linux | 7.0 |
| Opensuse | Evergreen | 11.4 |
| Suse | Linux Enterprise Real Time Extension | 11 |
| Suse | Suse Linux Enterprise Server | 11 |
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.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0674.htmlThird Party Advisory
- http://secunia.com/advisories/62326Broken Link
- http://secunia.com/advisories/62336Broken Link
- http://www.debian.org/security/2014/dsa-3093Third Party Advisory
- http://www.openwall.com/lists/oss-security/2014/10/24/7Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/70747Third Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/70749Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1156518Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/3d32e4dbe71374a6780eaf51d719d76f9a9bf22ExploitPatchThird Party Advisory
- https://lkml.org/lkml/2014/10/24/460ExploitMailing ListPatch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
FAQ
What is CVE-2014-8369?
CVE-2014-8369 is a vulnerability with a CVSS score of 7.8 (HIGH). The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.17.2 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to cause...
How severe is CVE-2014-8369?
CVE-2014-8369 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-8369?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Opensuse Evergreen, Suse Linux Enterprise Real Time Extension, Suse Suse Linux Enterprise Server.