Improper Preservation of Permissions Affecting etcd package, versions <3.2.26+dfsg-6ubuntu0.1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-UBUNTU2004-ETCD-597442
  • published6 Aug 2020
  • disclosed5 Aug 2020

Introduced: 5 Aug 2020

CVE-2020-15113  (opens in a new tab)
CWE-281  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 etcd to version 3.2.26+dfsg-6ubuntu0.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream etcd package and not the etcd package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).

CVSS Scores

version 3.1