CVE-2016-7042 (retired)

Priority
Description
The proc_keys_show function in security/keys/proc.c in the Linux kernel
through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is
enabled, uses an incorrect buffer size for certain timeout data, which
allows local users to cause a denial of service (stack memory corruption
and panic) by reading the /proc/keys file.
Ubuntu-Description
Ondrej Kozina discovered that the keyring interface in the Linux kernel
contained a buffer overflow when displaying timeout events via the
/proc/keys interface. A local attacker could use this to cause a denial of
service (system crash).
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
 sbeattie> fix is commit 03dab869b7b239c4e013ec82aea22e181e441cfc
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):released (3.2.0-115.157)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-47.68)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixed by 03dab869b7b239c4e013ec82aea22e181e441cfc
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was released [3.2.0-1677.104])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1001.10)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.3)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Package
linux-krillin:ignored (was needed now end-of-life)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Patches:
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):released (3.13.0-101.148~precise1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1038.45)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1035.39)
Package
Upstream:released (4.9~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was released [3.2.0-1493.120])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
linux-vegetahd:ignored (was needed now end-of-life)
More Information

Updated: 2019-05-15 17:19:29 UTC (commit 2d71aefac924bf16479c12958688c37878e881eb)