CVE-2014-9717
- State
- Published
- Severity
- Not scored
- Published
- May 2, 2016
- Updated
- Aug 6, 2024
- Reserved
- Apr 17, 2015
Description
fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- SUSE-SU-2016:1690vendor-advisory
- SUSE-SU-2016:1696vendor-advisory
- https://github.com/torvalds/linux/commit/ce07d891a0891d3c0d0c2d73d577490486b809e1
- [oss-security] 20150417 USERNS allows circumventing MNT_LOCKEDmailing-list
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce07d891a0891d3c0d0c2d73d577490486b809e1
- https://bugzilla.redhat.com/show_bug.cgi?id=1226751
- [linux-kernel] 20141007 [PATCH] mnt: don't allow to detach the namespace rootmailing-list
- [containers] 20150402 [PATCH review 0/19] Locked mount and loopback mount fixesmailing-list
- 74226vdb-entry
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.2
- SUSE-SU-2016:1937vendor-advisory
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