CVE-2016-1576

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
canonicalCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 56%
VendorProductVersion
canonicalubuntu_core
15.04
canonicalubuntu_linux
12.04
canonicalubuntu_linux
14.04
canonicalubuntu_linux
15.10
canonicalubuntu_linux
16.04
canonicalubuntu_linux
16.10
canonicalubuntu_touch
15.04
linuxlinux_kernel
𝑥
≤ 4.5.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
jessie
not-affected
wheezy
not-affected
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
sid
6.11.5-1
fixed
trixie
6.11.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
zesty
not-affected
yakkety
not-affected
xenial
not-affected
wily
Fixed 4.2.0-30.35
released
vivid
Fixed 3.19.0-51.57
released
trusty
Fixed 3.13.0-79.123
released
precise
ignored
linux-armadaxp
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
linux-aws
zesty
dne
yakkety
dne
xenial
not-affected
trusty
not-affected
precise
dne
linux-flo
zesty
dne
yakkety
ignored
xenial
ignored
wily
ignored
vivid
ignored
trusty
dne
precise
dne
linux-gke
zesty
dne
yakkety
dne
xenial
not-affected
trusty
dne
precise
dne
linux-goldfish
zesty
ignored
yakkety
ignored
xenial
ignored
wily
ignored
vivid
ignored
trusty
dne
precise
dne
linux-grouper
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
dne
linux-hwe
zesty
dne
yakkety
dne
xenial
not-affected
trusty
dne
precise
dne
linux-hwe-edge
zesty
dne
yakkety
dne
xenial
not-affected
trusty
dne
precise
dne
linux-linaro-omap
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
linux-linaro-shared
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
linux-linaro-vexpress
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
linux-lts-quantal
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
linux-lts-raring
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
linux-lts-saucy
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
linux-lts-trusty
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
Fixed 3.13.0-79.123~precise1
released
linux-lts-utopic
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
Fixed 3.16.0-62.82~14.04.1
released
precise
dne
linux-lts-vivid
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
Fixed 3.19.0-51.57~14.04.1
released
precise
dne
linux-lts-wily
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
Fixed 4.2.0-30.35~14.04.1
released
precise
dne
linux-lts-xenial
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
not-affected
precise
dne
linux-maguro
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
dne
linux-mako
zesty
dne
yakkety
ignored
xenial
ignored
wily
ignored
vivid
ignored
trusty
dne
precise
dne
linux-manta
zesty
dne
yakkety
dne
xenial
dne
wily
ignored
vivid
ignored
trusty
dne
precise
dne
linux-qcm-msm
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
linux-raspi2
zesty
not-affected
yakkety
not-affected
xenial
not-affected
wily
Fixed 4.2.0-1025.32
released
vivid
dne
trusty
dne
precise
dne
linux-snapdragon
zesty
not-affected
yakkety
not-affected
xenial
not-affected
wily
dne
trusty
dne
precise
dne
linux-ti-omap4
zesty
dne
yakkety
dne
xenial
dne
wily
dne
vivid
dne
trusty
dne
precise
ignored
References
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1576.html
http://www.halfdog.net/Security/2016/OverlayfsOverFusePrivilegeEscalation/
http://www.openwall.com/lists/oss-security/2016/02/24/8
http://www.openwall.com/lists/oss-security/2021/10/18/1
https://bugs.launchpad.net/bugs/1535150
https://launchpadlibrarian.net/235300093/0005-overlayfs-Be-more-careful-about-copying-up-sxid-file.patch
https://launchpadlibrarian.net/235300225/0006-overlayfs-Propogate-nosuid-from-lower-and-upper-moun.patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1576.html
http://www.halfdog.net/Security/2016/OverlayfsOverFusePrivilegeEscalation/
http://www.openwall.com/lists/oss-security/2016/02/24/8
http://www.openwall.com/lists/oss-security/2021/10/18/1
https://bugs.launchpad.net/bugs/1535150
https://launchpadlibrarian.net/235300093/0005-overlayfs-Be-more-careful-about-copying-up-sxid-file.patch
https://launchpadlibrarian.net/235300225/0006-overlayfs-Propogate-nosuid-from-lower-and-upper-moun.patch