6.5

CVE-2018-20551: canonical ubuntu_linux Improper Input Validation

CVSS: 6.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-20551DEBIAN-CVE-2018-20551
Published 28-12-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-20551 is a medium (CVSS 6.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 2.02% chance of exploitation in the next 30 days, higher than 80.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (NVD)
EPSS score
2.02%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 5 · Related 3
MGASA-2019-0092OPENSUSE-SU-2021:3854-1RHSA-2019:2713SUSE-SU-2021:3854-1USN-3886-1

Timeline

  1. 28-12-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A reachable Object::getString assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to construction of invalid rich media annotation assets in the AnnotRichMedia class in Annot.c.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.02%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

0.00 pp

From 2.02% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.02%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (gitlab.freedesktop.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Canonical1 product
Debian1 product
  • poppler< 0.71.0-4
Freedesktop1 product
Ubuntu1 product
  • poppler< 0.41.0-0ubuntu1.12 | < 0.62.0-2ubuntu2.7

4 vendors · 4 products

References

8 links