A cyrus-sasl2 security update has been released for Debian GNU/Linux 8 LTS

Package : cyrus-sasl2
Version : 2.1.26.dfsg1-13+deb8u2
CVE ID : CVE-2019-19906
Debian Bug : 947043

There has been an out-of-bounds write in Cyrus SASL leading to
unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP
packet. The OpenLDAP crash was ultimately caused by an off-by-one error
in _sasl_add_string in common.c in cyrus-sasl.

For Debian 8 "Jessie", this problem has been fixed in version
2.1.26.dfsg1-13+deb8u2.

We recommend that you upgrade your cyrus-sasl2 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS