CVE-2016-9178

Priority
Medium
Description
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux
kernel before 4.7.5 does not initialize a certain integer variable, which
allows local users to obtain sensitive information from kernel stack memory
by triggering failure of a get_user_ex call.
Ubuntu-Description
It was discovered that an information leak existed in __get_user_asm_ex()
in the Linux kernel. A local attacker could use this to expose sensitive
information.
References
Notes
 sbeattie> the fix for this introduces CVE-2016-9644. NOTE: This
  is only an issue if 1c109fabbd51863475cd12ac206bdd249aee35af
  (added in 4.8) is backported without also backporting
  548acf19234dbda5a52d5a8e7e205af46e9da840 (added
  in 4.6). However, the first attempt at backporting
  548acf19234dbda5a52d5a8e7e205af46e9da840 was pulled shortly
  thereafter.
 sbeattie> The git commit for xenial is
  1f4da631f0159d77908edb10f15e84642980cf16.
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):released (3.13.0-132.181~precise1)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1004.9)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
linux-vegetahd:needed
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Patches:
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.3)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):not-affected (4.10.0-19.21)
Ubuntu 12.04 ESM (Precise Pangolin):ignored (was needed ESM criteria)
Ubuntu 14.04 LTS (Trusty Tahr):released (3.13.0-132.181)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-47.68)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.8.0-22.24)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixed by 1c109fabbd51863475cd12ac206bdd249aee35af
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was needed)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was needed)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):released (4.4.0-47.68~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.10.0-1004.4)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-28.30~16.04.1)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.11.0-1009.9)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (was needed now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):pending (4.4.0-1002.2)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1001.10)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):not-affected (4.10.0-1004.6)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1038.45)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.8.0-1013.15)
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):not-affected (4.4.0-1050.54)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1035.39)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.4.0-1033.37)
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):pending (4.4.0-9019.20)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 17.04 (Zesty Zapus):ignored (abandoned)
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
linux-krillin:needed
Package
Upstream:released (4.8~rc7)
Ubuntu 17.10 (Artful Aardvark):DNE
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 17.04 (Zesty Zapus):DNE
More Information

Updated: 2017-10-17 19:14:25 UTC (commit 13537)