<p>Upgrade <code>Debian:10</code> <code>exim4</code> to version 4.92-8+deb10u6 or higher.</p>

CVE-2020-28021 Affecting exim4 package, versions <4.92-8+deb10u6

Snyk CVSS

Attack Complexity Low

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS 0.25% (65^th percentile)

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Snyk ID SNYK-DEBIAN10-EXIM4-1279435
published 5 May 2021
disclosed 6 May 2021

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Introduced: 5 May 2021

CVE-2020-28021 Open this link in a new tab

How to fix?

Upgrade Debian:10 exim4 to version 4.92-8+deb10u6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream exim4 package and not the exim4 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. An authenticated remote SMTP client can insert newline characters into a spool file (which indirectly leads to remote code execution as root) via AUTH= in a MAIL FROM command.