#VU52866 Input validation error in Exim - CVE-2020-28021

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Main Vulnerability Database Vulnerabilities #VU52866

#VU52866 Input validation error in Exim - CVE-2020-28021

Published: May 4, 2021


Vulnerability identifier: #VU52866
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-28021
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Exim
Software vendor:
Exim

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions

The vulnerability exists due to insufficient validation of user-supplied input when processing new line characters. A remote attacker can inject a new line character into the spool header file and modify the mail queue.


Remediation

Install updates from vendor's website.

External links