Vigil@nce - Dovecot IMAP server: out-of-bounds memory reading via NTLM Package
October 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian, Fedora, openSUSE Leap, RHEL, SUSE Linux
Enterprise Desktop, SLES, Ubuntu.
Severity: 2/4.
Consequences: data reading, denial of service on service, denial
of service on client.
Provenance: intranet client.
Confidence: confirmed by the editor (5/5).
Creation date: 12/08/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a read at an invalid address via NTLM
Package of Dovecot IMAP server, in order to trigger a denial of
service, or to obtain sensitive information.
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