vulnerability

FreeBSD: VID-61db9b88-d091-11e9-8d41-97657151f8c2: Exim -- RCE with root privileges in TLS SNI handler

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:C/I:N/A:N)
Published
Sep 6, 2019
Added
Sep 7, 2019
Modified
Dec 10, 2025

Description

Exim developers report: If your Exim server accepts TLS connections, it is vulnerable. This does not depend on the TLS libray, so both, GnuTLS and OpenSSL are affected. The vulnerability is exploitable by sending a SNI ending in a backslash-null sequence during the initial TLS handshake. The exploit exists as a POC. For more details see the document qualys.mbx

Solution

freebsd-upgrade-package-exim

References

Title
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