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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://launchpadlibrarian.net/235300093/0005-overlayfs-Be-more-careful-about-copying-up-sxid-file.patch
http://www.openwall.com/lists/oss-security/2016/02/24/8
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360
http://www.halfdog.net/Security/2016/OverlayfsOverFusePrivilegeEscalation/	Exploit
https://bugs.launchpad.net/bugs/1535150
https://launchpadlibrarian.net/235300225/0006-overlayfs-Propogate-nosuid-from-lower-and-upper-moun.patch
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1576.html
http://www.openwall.com/lists/oss-security/2021/10/18/1

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:canonical:ubuntu_core:15.04:::::::*
	cpe:2.3:o:canonical:ubuntu_touch:15.04:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:15.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:16.10:::::::*

Configuration 2 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2016-05-02 10:59

Updated : 2021-10-18 21:15

NVD link : CVE-2016-1576

Mitre link : CVE-2016-1576

JSON object : View

Products Affected

canonical

ubuntu_core
ubuntu_linux
ubuntu_touch

linux

linux_kernel

CWE

CWE-264

Permissions, Privileges, and Access Controls

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