VDB
CVE-2014-9717
CVE-2014-9717
REJECTED
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.
EPSS 0.04% · 12.9th percentile
Risk Scores
EPSS Score
0.04%
12.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:14.04:LTS | linux-aws | 0 |
| Ubuntu:16.04:LTS | linux | 0 |
| Ubuntu:16.04:LTS | linux-gke | 0 |
| Ubuntu:16.04:LTS | linux-hwe | 0 |
| Ubuntu:16.04:LTS | linux-snapdragon | 0 |
| Ubuntu:14.04:LTS | linux-lts-wily | 0 |
| Ubuntu:16.04:LTS | linux-aws | 0 |
| Ubuntu:16.04:LTS | linux-raspi2 | 0 |
| Ubuntu:14.04:LTS | linux-lts-xenial | 0 |
Exploit Intelligence
- SUSE-SU-2016:1690 (circl)
- SUSE-SU-2016:1696 (circl)
- https://github.com/torvalds/linux/commit/ce07d891a0891d3c0d0c2d73d577490486b809e1 (circl)
- [oss-security] 20150417 USERNS allows circumventing MNT_LOCKED (circl)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce07d891a0891d3c0d0c2d73d577490486b809e1 (circl)
- https://bugzilla.redhat.com/show_bug.cgi?id=1226751 (circl)
- [linux-kernel] 20141007 [PATCH] mnt: don't allow to detach the namespace root (circl)
- [containers] 20150402 [PATCH review 0/19] Locked mount and loopback mount fixes (circl)
- 74226 (circl)
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.2 (circl)
…and 1 more exploits
Timeline
- May 2, 2016 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 17, 2022 CVE Updated
- May 20, 2022 EPSS Score
- Jul 12, 2022 EPSS Score
- Sep 3, 2022 EPSS Score
- Oct 26, 2022 EPSS Score
- Dec 18, 2022 EPSS Score
- Feb 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 2, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2014-9717 third-party-advisory
- https://groups.google.com/forum/#!topic/linux.kernel/HnegnbXk0Vs third-party-advisory
- http://www.openwall.com/lists/oss-security/2015/04/17/4 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2014-9717 third-party-advisory