6.1

CVE-2014-9717: linux linux_kernel Improper Access Control

Modified
AliasesUBUNTU-CVE-2014-9717DEBIAN-CVE-2014-9717
Published 02-05-2016Last modified 06-08-2024

Vulnerability summary

CVE-2014-9717 is a medium (CVSS 6.1) Improper Access Control vulnerability in linux linux_kernel. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 26.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.1, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.1/10
010
Medium · v3.0 (NVD)
EPSS score
0.33%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
SUSE-SU-2016:1690-1SUSE-SU-2016:1696-1SUSE-SU-2016:1937-1

Timeline

  1. 02-05-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.33% on 05-10-2026

05-10-202604-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu8 products
  • linux< 4.2.0-16.19
  • linux-aws< 4.4.0-1002.2 | < 4.4.0-1001.10
  • linux-gke< 4.4.0-1003.3
  • linux-hwe< 4.8.0-36.36~16.04.1
  • linux-lts-wily< 4.2.0-18.22~14.04.1
Debian1 product
  • linux< 4.0.2-1
Linux1 product

3 vendors · 10 products

References

15 links
Show all 15 references