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[Bug 1384539] Re: CVE-2014-3610

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1384539@xxxxxxxxxxxxxxxxxx>
Date: Tue, 03 Feb 2015 15:24:57 -0000
Reply-to: Bug 1384539 <1384539@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
This bug was fixed in the package linux-ec2 - 2.6.32-375.92

---------------
linux-ec2 (2.6.32-375.92) lucid; urgency=low

  [ Stefan Bader ]

  * Rebased to Ubuntu-2.6.32-71.138
  * Xen: x86, 64-bit: Move K8 B step iret fixup to fault entry asm
    - LP: #1403918
  * Xen: x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels
    - LP: #1403918
  * Xen: x86-32, espfix: Remove filter for espfix32 due to race
    - LP: #1403918
  * Xen: x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit
    stack
    - LP: #1403918
  * Xen: x86, espfix: Make espfix64 a Kconfig option, fix UML
    - LP: #1403918
  * Xen: x86, espfix: Make it possible to disable 16-bit support
    - LP: #1403918
  * Xen: x86_64/entry/xen: Do not invoke espfix64 on Xen
    - LP: #1403918
  * Xen: [Config] Enable CONFIG_X86_16BIT
  * Rebased to Ubuntu-2.6.32-72.139
  * Release Tracking Bug
    - LP: #1411354

  [ Ubuntu: 2.6.32-72.139 ]

  * isofs: Fix infinite looping over CE entries
    - LP: #1407947
    - CVE-2014-9420
  * x86/tls: Validate TLS entries to protect espfix
    - LP: #1403852
    - CVE-2014-8133

  [ Ubuntu: 2.6.32-71.138 ]

  * [Config] updateconfigs CONFIG_X86_16BIT=y after v2.6.32.65 update
  * KVM: x86: Check non-canonical addresses upon WRMSR
    - LP: #1384539
    - CVE-2014-3610
  * KVM: x86: Improve thread safety in pit
    - LP: #1384540
    - CVE-2014-3611
  * net:socket: set msg_namelen to 0 if msg_name is passed as NULL in
    msghdr struct from userland.
    - LP: #1335478
  * x86, 64-bit: Move K8 B step iret fixup to fault entry asm
    - LP: #1403918
  * x86-64: Adjust frame type at paranoid_exit:
    - LP: #1403918
  * x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels
    - LP: #1403918
  * x86-32, espfix: Remove filter for espfix32 due to race
    - LP: #1403918
  * x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack
    - LP: #1403918
  * x86, espfix: Move espfix definitions into a separate header file
    - LP: #1403918
  * x86, espfix: Fix broken header guard
    - LP: #1403918
  * x86, espfix: Make espfix64 a Kconfig option, fix UML
    - LP: #1403918
  * x86, espfix: Make it possible to disable 16-bit support
    - LP: #1403918
  * x86_64/entry/xen: Do not invoke espfix64 on Xen
    - LP: #1403918
  * x86/espfix/xen: Fix allocation of pages for paravirt page tables
    - LP: #1403918
  * x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C
    - LP: #1403918
  * x86_64, traps: Rework bad_iret
    - LP: #1403918
 -- Stefan Bader <stefan.bader@xxxxxxxxxxxxx>   Thu, 18 Dec 2014 18:20:27 +0100

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

Title:
  CVE-2014-3610

Status in linux package in Ubuntu:
  Fix Released
Status in linux-armadaxp package in Ubuntu:
  Invalid
Status in linux-ec2 package in Ubuntu:
  Invalid
Status in linux-flo package in Ubuntu:
  New
Status in linux-fsl-imx51 package in Ubuntu:
  Invalid
Status in linux-goldfish package in Ubuntu:
  New
Status in linux-lts-backport-maverick package in Ubuntu:
  New
Status in linux-lts-backport-natty package in Ubuntu:
  New
Status in linux-lts-quantal package in Ubuntu:
  Invalid
Status in linux-lts-raring package in Ubuntu:
  Invalid
Status in linux-lts-saucy package in Ubuntu:
  Invalid
Status in linux-lts-trusty package in Ubuntu:
  Invalid
Status in linux-lts-utopic package in Ubuntu:
  Invalid
Status in linux-mako package in Ubuntu:
  New
Status in linux-manta package in Ubuntu:
  New
Status in linux-mvl-dove package in Ubuntu:
  Invalid
Status in linux-ti-omap4 package in Ubuntu:
  Invalid
Status in linux source package in Lucid:
  Fix Released
Status in linux-armadaxp source package in Lucid:
  Invalid
Status in linux-ec2 source package in Lucid:
  Fix Released
Status in linux-flo source package in Lucid:
  Invalid
Status in linux-fsl-imx51 source package in Lucid:
  Invalid
Status in linux-goldfish source package in Lucid:
  Invalid
Status in linux-lts-backport-maverick source package in Lucid:
  New
Status in linux-lts-backport-natty source package in Lucid:
  New
Status in linux-lts-quantal source package in Lucid:
  Invalid
Status in linux-lts-raring source package in Lucid:
  Invalid
Status in linux-lts-saucy source package in Lucid:
  Invalid
Status in linux-lts-trusty source package in Lucid:
  Invalid
Status in linux-lts-utopic source package in Lucid:
  Invalid
Status in linux-mako source package in Lucid:
  Invalid
Status in linux-manta source package in Lucid:
  Invalid
Status in linux-mvl-dove source package in Lucid:
  Invalid
Status in linux-ti-omap4 source package in Lucid:
  Invalid
Status in linux source package in Precise:
  Fix Released
Status in linux-armadaxp source package in Precise:
  Fix Released
Status in linux-ec2 source package in Precise:
  Invalid
Status in linux-flo source package in Precise:
  Invalid
Status in linux-fsl-imx51 source package in Precise:
  Invalid
Status in linux-goldfish source package in Precise:
  Invalid
Status in linux-lts-backport-maverick source package in Precise:
  New
Status in linux-lts-backport-natty source package in Precise:
  New
Status in linux-lts-quantal source package in Precise:
  Fix Committed
Status in linux-lts-raring source package in Precise:
  Invalid
Status in linux-lts-saucy source package in Precise:
  Fix Committed
Status in linux-lts-trusty source package in Precise:
  Fix Released
Status in linux-lts-utopic source package in Precise:
  Invalid
Status in linux-mako source package in Precise:
  Invalid
Status in linux-manta source package in Precise:
  Invalid
Status in linux-mvl-dove source package in Precise:
  Invalid
Status in linux-ti-omap4 source package in Precise:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux-armadaxp source package in Trusty:
  Invalid
Status in linux-ec2 source package in Trusty:
  Invalid
Status in linux-flo source package in Trusty:
  Invalid
Status in linux-fsl-imx51 source package in Trusty:
  Invalid
Status in linux-goldfish source package in Trusty:
  Invalid
Status in linux-lts-backport-maverick source package in Trusty:
  New
Status in linux-lts-backport-natty source package in Trusty:
  New
Status in linux-lts-quantal source package in Trusty:
  Invalid
Status in linux-lts-raring source package in Trusty:
  Invalid
Status in linux-lts-saucy source package in Trusty:
  Invalid
Status in linux-lts-trusty source package in Trusty:
  Invalid
Status in linux-lts-utopic source package in Trusty:
  Invalid
Status in linux-mako source package in Trusty:
  Invalid
Status in linux-manta source package in Trusty:
  Invalid
Status in linux-mvl-dove source package in Trusty:
  Invalid
Status in linux-ti-omap4 source package in Trusty:
  Invalid
Status in linux source package in Utopic:
  Fix Released
Status in linux-armadaxp source package in Utopic:
  Invalid
Status in linux-ec2 source package in Utopic:
  Invalid
Status in linux-flo source package in Utopic:
  New
Status in linux-fsl-imx51 source package in Utopic:
  Invalid
Status in linux-goldfish source package in Utopic:
  New
Status in linux-lts-backport-maverick source package in Utopic:
  New
Status in linux-lts-backport-natty source package in Utopic:
  New
Status in linux-lts-quantal source package in Utopic:
  Invalid
Status in linux-lts-raring source package in Utopic:
  Invalid
Status in linux-lts-saucy source package in Utopic:
  Invalid
Status in linux-lts-trusty source package in Utopic:
  Invalid
Status in linux-lts-utopic source package in Utopic:
  Invalid
Status in linux-mako source package in Utopic:
  New
Status in linux-manta source package in Utopic:
  New
Status in linux-mvl-dove source package in Utopic:
  Invalid
Status in linux-ti-omap4 source package in Utopic:
  Invalid
Status in linux source package in Vivid:
  Fix Released
Status in linux-armadaxp source package in Vivid:
  Invalid
Status in linux-ec2 source package in Vivid:
  Invalid
Status in linux-flo source package in Vivid:
  New
Status in linux-fsl-imx51 source package in Vivid:
  Invalid
Status in linux-goldfish source package in Vivid:
  New
Status in linux-lts-backport-maverick source package in Vivid:
  New
Status in linux-lts-backport-natty source package in Vivid:
  New
Status in linux-lts-quantal source package in Vivid:
  Invalid
Status in linux-lts-raring source package in Vivid:
  Invalid
Status in linux-lts-saucy source package in Vivid:
  Invalid
Status in linux-lts-trusty source package in Vivid:
  Invalid
Status in linux-lts-utopic source package in Vivid:
  Invalid
Status in linux-mako source package in Vivid:
  New
Status in linux-manta source package in Vivid:
  New
Status in linux-mvl-dove source package in Vivid:
  Invalid
Status in linux-ti-omap4 source package in Vivid:
  Invalid

Bug description:
  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.

  Break-Fix: - 854e8bb1aa06c578c2c9145fa6bfe3680ef63b23

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References

[Bug 1384539] [NEW] CVE-2014-3610
From: John Johansen, 2014-10-23