Vulnerability Details : CVE-2014-9717

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.
Published 2016-05-02 10:59:07
Updated 2016-08-12 01:59:05
Source MITRE
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Exploit prediction scoring system (EPSS) score for CVE-2014-9717

Probability of exploitation activity in the next 30 days: 0.04%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2014-9717

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
3.6
 LOW AV:L/AC:L/Au:N/C:P/I:P/A:N
3.9
4.9
 NIST
6.1
 MEDIUM CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
1.8
4.2
 NIST

CWE ids for CVE-2014-9717

  • The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2014-9717

Products affected by CVE-2014-9717

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