Description
The overlayfs implementation in the linux (aka Linux kernel) package before 3.19.0-21.21 in Ubuntu through 15.04 does not properly check permissions for file creation in the upper filesystem directory, which allows local users to obtain root access by leveraging a configuration in which overlayfs is permitted in an arbitrary mount namespace.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-1328.html ↗
- http://www.securityfocus.com/bid/75206 ↗
- https://www.exploit-db.com/exploits/37292/ ↗
- http://www.exploit-db.com/exploits/40688/ ↗
- https://security-tracker.debian.org/tracker/CVE-2015-1328 ↗
- http://seclists.org/oss-sec/2015/q2/717 ↗