Bug#922509: security issue in PEP plugin (CVE-2019-1000021)

[W. Martin Borgert]

Source: slixmpp
Version: 1.2.2-1.1
Severity: grave
Tags: security patch upstream

See
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1000021
for details. A fixed version for stretch-security is on its way.