8.8

CVE-2018-6553: canonical ubuntu_linux

CVSS: 8.8v3.0HighModified
AliasesUBUNTU-CVE-2018-6553DEBIAN-CVE-2018-6553CGA-36g3-2hhx-f83m
Published 10-08-2018Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2018-6553 is a high (CVSS 8.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 30.9% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.0 (NVD)
EPSS score
0.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
DLA-1426-1DSA-4243-1USN-3713-1CGA-45MG-W595-WHJVCGA-QXG7-473X-3RCV

Timeline

  1. 10-08-2018
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

The CUPS AppArmor profile incorrectly confined the dnssd backend due to use of hard links. A local attacker could possibly use this issue to escape confinement. This flaw affects versions prior to 2.2.7-1ubuntu2.1 in Ubuntu 18.04 LTS, prior to 2.2.4-7ubuntu3.1 in Ubuntu 17.10, prior to 2.1.3-4ubuntu0.5 in Ubuntu 16.04 LTS, and prior to 1.7.2-0ubuntu1.10 in Ubuntu 14.04 LTS.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

0.00 pp

From 0.39% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.39%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Chainguard6 products
  • cupsAll versions (No fix recorded)
  • cups-clientAll versions (No fix recorded)
  • cups-devAll versions (No fix recorded)
  • cups-docAll versions (No fix recorded)
  • cups-libsAll versions (No fix recorded)
Wolfi6 products
  • cupsAll versions (No fix recorded)
  • cups-clientAll versions (No fix recorded)
  • cups-devAll versions (No fix recorded)
  • cups-docAll versions (No fix recorded)
  • cups-libsAll versions (No fix recorded)
Debian2 products
Canonical1 product
Cups1 product
Ubuntu1 product
  • cups< 1.7.2-0ubuntu1.10 | < 2.1.3-4ubuntu0.5 | < 2.2.7-1ubuntu2.1

6 vendors · 17 products

References

8 links