CVE-2020-8793

Medium

Description

OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.

SeverityMedium

CVSS4.7

Exploit probability—

Product

Opensmtpd

PublishedFeb 25, 2020

First seenFeb 25, 2020

How to fix

Update

opensmtpd opensmtpd6.6.4 or later

Vendor advisories

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/
usn.ubuntu.com/4294-1/

Affected products

Product	Affected versions	Fixed in
opensmtpd opensmtpd	v < 6.6.4	6.6.4
fedoraproject fedora	32	—
canonical ubuntu_linux	18.04, 19.10	—

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