CVE-2016-9756

Priority
Medium
Description
arch/x86/kvm/emulate.c in the Linux kernel before 4.8.12 does not properly
initialize Code Segment (CS) in certain error cases, which allows local
users to obtain sensitive information from kernel stack memory via a
crafted application.
Ubuntu-Description
Dmitry Vyukov discovered that the KVM implementation in the Linux kernel
did not properly initialize the Code Segment (CS) in certain error cases. A
local attacker could use this to expose sensitive information (kernel
memory).
References
Notes
 jdstrand> android kernels (flo, goldfish, grouper, maguro, mako and manta) are
  not supported on the Ubuntu Touch 14.10 and earlier preview kernels
 jdstrand> linux-lts-saucy no longer receives official support
 jdstrand> linux-lts-quantal no longer receives official support
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):released (3.13.0-107.154~precise1)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
linux-vegetahd:not-affected
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (end-of-life)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Patches:
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.3)
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):released (3.2.0-120.163)
Ubuntu 14.04 LTS (Trusty Tahr):released (3.13.0-107.154)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:released (3.19.0-79.87)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-59.80)
Ubuntu 16.10 (Yakkety Yak):released (4.8.0-34.36)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.9.0-11.12)
Patches:
Introduced by d1442d85cc30ea75f7d399474ca738e0bc96f715Fixed by 2117d5398c81554fbf803f5fd1dc55eb78216c0c
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):released (3.2.0-1498.125)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (end-of-life)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):released (3.2.0-1681.108)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (abandoned)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):released (4.4.0-59.80~14.04.1)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (end-of-life)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):pending (4.8.0-34.36~16.04.1)
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (abandoned)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (abandoned)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):released (3.19.0-79.87~14.04.1)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1003.12)
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:ignored (was needed now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (x86 only)
Ubuntu 16.10 (Yakkety Yak):not-affected (x86 only)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.8.0-1024.27)
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (x86 only)
Ubuntu 16.10 (Yakkety Yak):not-affected (x86 only)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.4.0-1046.50)
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:not-affected
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected
Ubuntu 16.10 (Yakkety Yak):not-affected
Ubuntu 17.04 (Zesty Zapus):not-affected
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (abandoned)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected
Ubuntu 16.10 (Yakkety Yak):not-affected
Ubuntu 17.04 (Zesty Zapus):not-affected
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
linux-krillin:not-affected
Package
Upstream:released (4.9~rc7)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:not-affected
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected
Ubuntu 16.10 (Yakkety Yak):not-affected
Ubuntu 17.04 (Zesty Zapus):not-affected
More Information

Updated: 2017-03-29 19:14:14 UTC (commit 12313)