CVE-2014-3610

moderate-risk
Published 2014-11-10

The WRMSR processing functionality in the KVM subsystem in the Linux kernel through 3.17.2 does not properly handle the writing of a non-canonical address to a model-specific register, which allows guest OS users to cause a denial of service (host OS crash) by leveraging guest OS privileges, related to the wrmsr_interception function in arch/x86/kvm/svm.c and the handle_wrmsr function in arch/x86/kvm/vmx.c.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (6)

Affected Vendors

Suse Linux Debian Canonical Opensuse

References (26)

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2015-0869.html
Third Party Advisory http://www.debian.org/security/2014/dsa-3060
Mailing List http://www.openwall.com/lists/oss-security/2014/10/24/9
Third Party Advisory http://www.securityfocus.com/bid/70742
Third Party Advisory http://www.ubuntu.com/usn/USN-2394-1
Third Party Advisory http://www.ubuntu.com/usn/USN-2417-1
Third Party Advisory http://www.ubuntu.com/usn/USN-2418-1
Third Party Advisory http://www.ubuntu.com/usn/USN-2491-1
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1144883
Exploit https://github.com/torvalds/linux/commit/854e8bb1aa06c578c2c9145fa6bfe3680ef63b2...
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2015-0869.html
Third Party Advisory http://www.debian.org/security/2014/dsa-3060
Mailing List http://www.openwall.com/lists/oss-security/2014/10/24/9
Third Party Advisory http://www.securityfocus.com/bid/70742
and 6 more references
31
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 13/34 · Low