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[John Johansen <john.johansen@xxxxxxxxxxxxx>]

*** This bug is a security vulnerability ***

Public security bug reported:

The snd_ctl_elem_add function in sound/core/control.c in the ALSA
control implementation in the Linux kernel before 3.15.2 does not
properly maintain the user_ctl_count value, which allows local users to
cause a denial of service (integer overflow and limit bypass) by
leveraging /dev/snd/controlCX access for a large number of
SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl calls.

Break-Fix: - 82262a46627bebb0febcc26664746c25cef08563

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Fix Committed

** Affects: linux-armadaxp (Ubuntu)
     Importance: Medium
         Status: Invalid

** Affects: linux-ec2 (Ubuntu)
     Importance: Medium
         Status: Invalid

** Affects: linux-fsl-imx51 (Ubuntu)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-backport-maverick (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux-lts-backport-natty (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux-lts-quantal (Ubuntu)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-raring (Ubuntu)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-saucy (Ubuntu)
     Importance: Medium
         Status: Invalid

** Affects: linux-mvl-dove (Ubuntu)
     Importance: Medium
         Status: Invalid

** Affects: linux-ti-omap4 (Ubuntu)
     Importance: Medium
         Status: Invalid

** Affects: linux (Ubuntu Lucid)
     Importance: Medium
         Status: New

** Affects: linux-armadaxp (Ubuntu Lucid)
     Importance: Medium
         Status: Invalid

** Affects: linux-ec2 (Ubuntu Lucid)
     Importance: Medium
         Status: New

** Affects: linux-fsl-imx51 (Ubuntu Lucid)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-backport-maverick (Ubuntu Lucid)
     Importance: Undecided
         Status: New

** Affects: linux-lts-backport-natty (Ubuntu Lucid)
     Importance: Undecided
         Status: New

** Affects: linux-lts-quantal (Ubuntu Lucid)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-raring (Ubuntu Lucid)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-saucy (Ubuntu Lucid)
     Importance: Medium
         Status: Invalid

** Affects: linux-mvl-dove (Ubuntu Lucid)
     Importance: Medium
         Status: Invalid

** Affects: linux-ti-omap4 (Ubuntu Lucid)
     Importance: Medium
         Status: Invalid

** Affects: linux (Ubuntu Precise)
     Importance: Medium
         Status: New

** Affects: linux-armadaxp (Ubuntu Precise)
     Importance: Medium
         Status: New

** Affects: linux-ec2 (Ubuntu Precise)
     Importance: Medium
         Status: Invalid

** Affects: linux-fsl-imx51 (Ubuntu Precise)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-backport-maverick (Ubuntu Precise)
     Importance: Undecided
         Status: New

** Affects: linux-lts-backport-natty (Ubuntu Precise)
     Importance: Undecided
         Status: New

** Affects: linux-lts-quantal (Ubuntu Precise)
     Importance: Medium
         Status: New

** Affects: linux-lts-raring (Ubuntu Precise)
     Importance: Medium
         Status: New

** Affects: linux-lts-saucy (Ubuntu Precise)
     Importance: Medium
         Status: New

** Affects: linux-mvl-dove (Ubuntu Precise)
     Importance: Medium
         Status: Invalid

** Affects: linux-ti-omap4 (Ubuntu Precise)
     Importance: Medium
         Status: New

** Affects: linux (Ubuntu Saucy)
     Importance: Medium
         Status: New

** Affects: linux-armadaxp (Ubuntu Saucy)
     Importance: Medium
         Status: Invalid

** Affects: linux-ec2 (Ubuntu Saucy)
     Importance: Medium
         Status: Invalid

** Affects: linux-fsl-imx51 (Ubuntu Saucy)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-backport-maverick (Ubuntu Saucy)
     Importance: Undecided
         Status: New

** Affects: linux-lts-backport-natty (Ubuntu Saucy)
     Importance: Undecided
         Status: New

** Affects: linux-lts-quantal (Ubuntu Saucy)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-raring (Ubuntu Saucy)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-saucy (Ubuntu Saucy)
     Importance: Medium
         Status: Invalid

** Affects: linux-mvl-dove (Ubuntu Saucy)
     Importance: Medium
         Status: Invalid

** Affects: linux-ti-omap4 (Ubuntu Saucy)
     Importance: Medium
         Status: New

** Affects: linux (Ubuntu Trusty)
     Importance: Medium
         Status: New

** Affects: linux-armadaxp (Ubuntu Trusty)
     Importance: Medium
         Status: Invalid

** Affects: linux-ec2 (Ubuntu Trusty)
     Importance: Medium
         Status: Invalid

** Affects: linux-fsl-imx51 (Ubuntu Trusty)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-backport-maverick (Ubuntu Trusty)
     Importance: Undecided
         Status: New

** Affects: linux-lts-backport-natty (Ubuntu Trusty)
     Importance: Undecided
         Status: New

** Affects: linux-lts-quantal (Ubuntu Trusty)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-raring (Ubuntu Trusty)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-saucy (Ubuntu Trusty)
     Importance: Medium
         Status: Invalid

** Affects: linux-mvl-dove (Ubuntu Trusty)
     Importance: Medium
         Status: Invalid

** Affects: linux-ti-omap4 (Ubuntu Trusty)
     Importance: Medium
         Status: Invalid

** Affects: linux (Ubuntu Utopic)
     Importance: Medium
         Status: Fix Committed

** Affects: linux-armadaxp (Ubuntu Utopic)
     Importance: Medium
         Status: Invalid

** Affects: linux-ec2 (Ubuntu Utopic)
     Importance: Medium
         Status: Invalid

** Affects: linux-fsl-imx51 (Ubuntu Utopic)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-backport-maverick (Ubuntu Utopic)
     Importance: Undecided
         Status: New

** Affects: linux-lts-backport-natty (Ubuntu Utopic)
     Importance: Undecided
         Status: New

** Affects: linux-lts-quantal (Ubuntu Utopic)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-raring (Ubuntu Utopic)
     Importance: Medium
         Status: Invalid

** Affects: linux-lts-saucy (Ubuntu Utopic)
     Importance: Medium
         Status: Invalid

** Affects: linux-mvl-dove (Ubuntu Utopic)
     Importance: Medium
         Status: Invalid

** Affects: linux-ti-omap4 (Ubuntu Utopic)
     Importance: Medium
         Status: Invalid


** Tags: kernel-cve-tracking-bug

** Tags added: kernel-cve-tracking-bug

** Information type changed from Public to Public Security

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2014-4655

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1339304

Title:
  CVE-2014-4655

Status in “linux” package in Ubuntu:
  Fix Committed
Status in “linux-armadaxp” package in Ubuntu:
  Invalid
Status in “linux-ec2” package in Ubuntu:
  Invalid
Status in “linux-fsl-imx51” package in Ubuntu:
  Invalid
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-mvl-dove” package in Ubuntu:
  Invalid
Status in “linux-ti-omap4” package in Ubuntu:
  Invalid
Status in “linux” source package in Lucid:
  New
Status in “linux-armadaxp” source package in Lucid:
  Invalid
Status in “linux-ec2” source package in Lucid:
  New
Status in “linux-fsl-imx51” 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-mvl-dove” source package in Lucid:
  Invalid
Status in “linux-ti-omap4” source package in Lucid:
  Invalid
Status in “linux” source package in Precise:
  New
Status in “linux-armadaxp” source package in Precise:
  New
Status in “linux-ec2” source package in Precise:
  Invalid
Status in “linux-fsl-imx51” 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:
  New
Status in “linux-lts-raring” source package in Precise:
  New
Status in “linux-lts-saucy” source package in Precise:
  New
Status in “linux-mvl-dove” source package in Precise:
  Invalid
Status in “linux-ti-omap4” source package in Precise:
  New
Status in “linux” source package in Saucy:
  New
Status in “linux-armadaxp” source package in Saucy:
  Invalid
Status in “linux-ec2” source package in Saucy:
  Invalid
Status in “linux-fsl-imx51” source package in Saucy:
  Invalid
Status in “linux-lts-backport-maverick” source package in Saucy:
  New
Status in “linux-lts-backport-natty” source package in Saucy:
  New
Status in “linux-lts-quantal” source package in Saucy:
  Invalid
Status in “linux-lts-raring” source package in Saucy:
  Invalid
Status in “linux-lts-saucy” source package in Saucy:
  Invalid
Status in “linux-mvl-dove” source package in Saucy:
  Invalid
Status in “linux-ti-omap4” source package in Saucy:
  New
Status in “linux” source package in Trusty:
  New
Status in “linux-armadaxp” source package in Trusty:
  Invalid
Status in “linux-ec2” source package in Trusty:
  Invalid
Status in “linux-fsl-imx51” 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-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 Committed
Status in “linux-armadaxp” source package in Utopic:
  Invalid
Status in “linux-ec2” source package in Utopic:
  Invalid
Status in “linux-fsl-imx51” source package in Utopic:
  Invalid
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-mvl-dove” source package in Utopic:
  Invalid
Status in “linux-ti-omap4” source package in Utopic:
  Invalid

Bug description:
  The snd_ctl_elem_add function in sound/core/control.c in the ALSA
  control implementation in the Linux kernel before 3.15.2 does not
  properly maintain the user_ctl_count value, which allows local users
  to cause a denial of service (integer overflow and limit bypass) by
  leveraging /dev/snd/controlCX access for a large number of
  SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl calls.

  Break-Fix: - 82262a46627bebb0febcc26664746c25cef08563

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