CVE-2014-8369
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.56% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- linux/linux kernel · debian/debian linux · opensuse/evergreen · suse/linux enterprise real time extension · suse/suse linux enterprise server
- Source
- cve@mitre.org
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3d32e4dbe71374a6780eaf51d719d76f9a9bf22f
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlMailing List, Third 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 List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/70747Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/70749Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1156518Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/3d32e4dbe71374a6780eaf51d719d76f9a9bf22fExploit, Patch, Third Party Advisory
- https://lkml.org/lkml/2014/10/24/460Exploit, Mailing List, Patch, Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3d32e4dbe71374a6780eaf51d719d76f9a9bf22f
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlMailing List, Third 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 List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/70747Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/70749Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1156518Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/3d32e4dbe71374a6780eaf51d719d76f9a9bf22fExploit, Patch, Third Party Advisory
- https://lkml.org/lkml/2014/10/24/460Exploit, Mailing List, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.