CVE-2014-3610

2014-10-2300:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

0.001 Low

EPSS

Percentile

32.5%

JSON

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.
A privileged guest user can use this flaw to crash the host.
Enabling CONFIG_PARAVIRT when building the kernel mitigates this issue
because wrmsrl() ends up invoking safe msr write variant.

Bugs

<https://launchpad.net/bugs/1384539>

Notes

Author	Note
jdstrand	android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support CVE disclosure was part of miscoordinated CRD (various (incomplete) commits were publicly leaked by other vendors and upstream before the embargo was lifted). Updates for linux on Ubuntu 14.04 LTS were made available to users on 2014/10/28 but due to a process error, USN publication did not happen until 2014/10/30. Updates for linux-lts-trusty on Ubuntu 12.04 LTS were made available to users on 2014/10/29 but due to a process error, USN publication did not happen until 2014/10/30. Updates for linux on Ubuntu 14.10 were made available to users on 2014/10/28 but due to a process error, USN publication did not happen until 2014/10/31.
henrix	According to http://seclists.org/oss-sec/2014/q4/438 a second commit is required; however, commit 8b3c3104c3f4f706e99365c3e0d2aa61b95f969f is just a ‘nice to have’, but not really fixing this CVE.

Author

Note

jdstrand

android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support CVE disclosure was part of miscoordinated CRD (various (incomplete) commits were publicly leaked by other vendors and upstream before the embargo was lifted). Updates for linux on Ubuntu 14.04 LTS were made available to users on 2014/10/28 but due to a process error, USN publication did not happen until 2014/10/30. Updates for linux-lts-trusty on Ubuntu 12.04 LTS were made available to users on 2014/10/29 but due to a process error, USN publication did not happen until 2014/10/30. Updates for linux on Ubuntu 14.10 were made available to users on 2014/10/28 but due to a process error, USN publication did not happen until 2014/10/31.

henrix

According to http://seclists.org/oss-sec/2014/q4/438 a second commit is required; however, commit 8b3c3104c3f4f706e99365c3e0d2aa61b95f969f is just a ‘nice to have’, but not really fixing this CVE.

OSVersionArchitecturePackageVersionFilename
ubuntu10.04noarchlinux< 2.6.32-71.138UNKNOWN
ubuntu12.04noarchlinux< 3.2.0-72.107UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-39.66UNKNOWN
ubuntu14.10noarchlinux< 3.16.0-24.32UNKNOWN
ubuntu12.04noarchlinux-armadaxp< 3.2.0-1641.59UNKNOWN
ubuntu10.04noarchlinux-ec2< 2.6.32-375.92UNKNOWN
ubuntu12.04noarchlinux-lts-trusty< 3.13.0-39.66~precise1UNKNOWN
ubuntu12.04noarchlinux-ti-omap4< 3.2.0-1456.76UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	10.04	noarch	linux	< 2.6.32-71.138	UNKNOWN
ubuntu	12.04	noarch	linux	< 3.2.0-72.107	UNKNOWN
ubuntu	14.04	noarch	linux	< 3.13.0-39.66	UNKNOWN
ubuntu	14.10	noarch	linux	< 3.16.0-24.32	UNKNOWN
ubuntu	12.04	noarch	linux-armadaxp	< 3.2.0-1641.59	UNKNOWN
ubuntu	10.04	noarch	linux-ec2	< 2.6.32-375.92	UNKNOWN
ubuntu	12.04	noarch	linux-lts-trusty	< 3.13.0-39.66~precise1	UNKNOWN
ubuntu	12.04	noarch	linux-ti-omap4	< 3.2.0-1456.76	UNKNOWN