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[Bug 1527374] Re: CVE-2015-8709

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1527374@xxxxxxxxxxxxxxxxxx>
Date: Wed, 24 Feb 2016 13:04:36 -0000
Reply-to: Bug 1527374 <1527374@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Branch linked: lp:~ubuntu-branches/ubuntu/trusty/linux-lts-wily
/trusty-security

** Branch linked: lp:~ubuntu-branches/ubuntu/trusty/linux-lts-wily
/trusty-proposed

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https://bugs.launchpad.net/bugs/1527374

Title:
  CVE-2015-8709

Status in linux package in Ubuntu:
  Fix Released
Status in linux-armadaxp package in Ubuntu:
  Confirmed
Status in linux-flo package in Ubuntu:
  Confirmed
Status in linux-goldfish package in Ubuntu:
  Confirmed
Status in linux-lts-quantal package in Ubuntu:
  Confirmed
Status in linux-lts-raring package in Ubuntu:
  Confirmed
Status in linux-lts-saucy package in Ubuntu:
  Confirmed
Status in linux-lts-trusty package in Ubuntu:
  Confirmed
Status in linux-lts-utopic package in Ubuntu:
  Fix Released
Status in linux-lts-vivid package in Ubuntu:
  Fix Released
Status in linux-lts-wily package in Ubuntu:
  Fix Released
Status in linux-lts-xenial package in Ubuntu:
  New
Status in linux-mako package in Ubuntu:
  Confirmed
Status in linux-manta package in Ubuntu:
  Confirmed
Status in linux-raspi2 package in Ubuntu:
  Fix Released
Status in linux-ti-omap4 package in Ubuntu:
  Confirmed
Status in lxc package in Ubuntu:
  Confirmed
Status in linux source package in Precise:
  Invalid
Status in linux-lts-trusty source package in Precise:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux source package in Vivid:
  Fix Released
Status in linux source package in Wily:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

Bug description:
  ** DISPUTED ** kernel/ptrace.c in the Linux kernel through 4.4.1
  mishandles uid and gid mappings, which allows local users to gain
  privileges by establishing a user namespace, waiting for a root
  process to enter that namespace with an unsafe uid or gid, and then
  using the ptrace system call.  NOTE: the vendor states "there is no
  kernel bug here."

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