Improper Input Validation Affecting zim package, versions *


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-UBUNTU1604-ZIM-1148170
  • published1 Jun 2025
  • disclosed23 Mar 2020

Introduced: 23 Mar 2020

CVE-2020-10870  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:16.04 zim.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zim package and not the zim package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Zim through 0.72.1 creates temporary directories with predictable names. A malicious user could predict and create Zim's temporary directories and prevent other users from being able to start Zim, resulting in a denial of service.

CVSS Base Scores

version 3.1