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FreeBSD: VID-08F5C27D-4326-11EA-AF8B-00155D0A0200 (CVE-2020-7247): OpenSMTPd -- critical LPE / RCE vulnerability

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FreeBSD: VID-08F5C27D-4326-11EA-AF8B-00155D0A0200 (CVE-2020-7247): OpenSMTPd -- critical LPE / RCE vulnerability

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
01/28/2020
Created
02/04/2020
Added
01/31/2020
Modified
05/03/2022

Description

smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.

Solution(s)

  • freebsd-upgrade-package-opensmtpd

References

  • CVE-2020-7247

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