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Ubuntu: (Multiple Advisories) (CVE-2020-7247): OpenSMTPD vulnerability

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Ubuntu: (Multiple Advisories) (CVE-2020-7247): OpenSMTPD vulnerability

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
01/29/2020
Created
02/08/2020
Added
02/06/2020
Modified
03/22/2023

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)

  • ubuntu-upgrade-opensmtpd

References

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