CVE-2016-1576 | BDVDB-2026-75619 Detail
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.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- 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
- https://bugs.launchpad.net/bugs/1535150
- http://www.openwall.com/lists/oss-security/2016/02/24/8
- 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/2021/10/18/1
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.