CVE-2014-7970
medium
CVSS v3
5.5
CVSS v4 NEW
—
VIR risk
5.5
Description
The pivot_root implementation in fs/namespace.c in the Linux kernel through 3.17 does not properly interact with certain locations of a chroot directory, which allows local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call.
Predictions
Exploit likelihood
55%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 11.0 | Affected | — |
Ubuntu Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 14.04 | Affected | — |
| 12.04 | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 3.16.7-1 |
| sid | Fixed | 3.16.7-1 |
| forky | Fixed | 3.16.7-1 |
| bullseye | Fixed | 3.16.7-1 |
| bookworm | Fixed | 3.16.7-1 |
References
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
- http://secunia.com/advisories/60174
- http://secunia.com/advisories/61142
- http://www.openwall.com/lists/oss-security/2014/10/08/21
- http://www.securityfocus.com/bid/70319
- http://www.securitytracker.com/id/1030991
- http://www.spinics.net/lists/linux-fsdevel/msg79153.html
- http://www.ubuntu.com/usn/USN-2419-1
- http://www.ubuntu.com/usn/USN-2420-1
- http://www.ubuntu.com/usn/USN-2513-1
- http://www.ubuntu.com/usn/USN-2514-1
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://bugzilla.redhat.com/show_bug.cgi?id=1151095
- https://exchange.xforce.ibmcloud.com/vulnerabilities/96921
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d0826019e529f21c84687521d03f60cd241ca7d
- https://security-tracker.debian.org/tracker/CVE-2014-7970
CWEs
CWE-400
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.