CVE-2016-1575 (retired)

Priority
Description
The overlayfs implementation in the Linux kernel through 4.5.2 does not
properly maintain POSIX ACL xattr data, which allows local users to gain
privileges by leveraging a group-writable setgid directory.
Ubuntu-Description
halfdog discovered that OverlayFS in the Linux kernel incorrectly
propagated security sensitive extended attributes, such as POSIX ACLs. A
local unprivileged attacker could use this to gain privileges.
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> precise does not allow unprivileged user namespaces,
  which is what lets an unprivileged user exploit this vulnerability;
  however, the issue of copying up setuid attributes still exists in
  the overlayfs codebase here, but it is a much lower priority to fix
  (needs root/CAP_SYS_ADMIN to exploit).
Package
Source: linux (LP Ubuntu Debian)
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):not-affected (no user-namespace mounts)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-8.23)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixed by 1175b6b8d96331676f1d436b089b965807f23b4a
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixed by local-2016-1575-2
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was needed)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
This package is not directly supported by the Ubuntu Security Team
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1001.10)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.3)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
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:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Product
linux-krillin:ignored (was needed now end-of-life)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Patches:
This package is not directly supported by the Ubuntu Security Team
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
This package is not directly supported by the Ubuntu Security Team
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):released (3.13.0-79.123~precise1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.4)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1012.12)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was needed)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Product
linux-vegetahd:ignored (was needed now end-of-life)
More Information

Updated: 2019-09-19 15:57:00 UTC (commit d32ebc32606b9517c6fa7d65a15441e2a57a6de5)