CVE-2016-1576

Description

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.

References

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/

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

Details

Risk Information

CVSS v2

CVSS v3