5.5

CVE-2018-16597: linux linux_kernel Incorrect Authorization

Modified
AliasesUBUNTU-CVE-2018-16597DEBIAN-CVE-2018-16597
Published 21-09-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-16597 is a medium (CVSS 5.5) Incorrect Authorization vulnerability in linux linux_kernel. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
0.55%
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 5 · Related 4
RHSA-2016:2574SUSE-SU-2018:3003-1SUSE-SU-2018:3004-1SUSE-SU-2018:3659-1SUSE-SU-2019:0095-1

Timeline

  1. 21-09-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel before 4.8. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.55%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.54% on 04-10-2026

04-10-202603-11-2026

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.

Ubuntu10 products
  • linux< 4.2.0-16.19 | < 4.13.0-16.19
  • linux-aws< 4.4.0-1002.2 | < 4.4.0-1001.10 | < 4.15.0-1001.1
  • linux-azure< 4.15.0-1023.24~14.04.1 | < 4.11.0-1009.9 | < 4.15.0-1002.2
  • linux-gcp< 4.10.0-1004.4 | < 4.15.0-1001.1
  • linux-hwe< 4.8.0-36.36~16.04.1
Netapp2 products
Debian1 product
  • linux< 4.8.5-1
Linux1 product
Opensuse1 product

5 vendors · 15 products

References

13 links
Show all 13 references