Arbitrary Command Injection Affecting alpine package, versions <2.21+dfsg1-1ubuntu0.1~esm1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
1.57% (72nd percentile)

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  • Snyk IDSNYK-UBUNTU1804-ALPINE-1540175
  • published22 Mar 2026
  • disclosed10 Aug 2021

Introduced: 10 Aug 2021

CVE-2021-38370  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 alpine to version 2.21+dfsg1-1ubuntu0.1~esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream alpine package and not the alpine package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS.

CVSS Base Scores

version 3.1