CVE-2019-12519, CVE-2019-12521: fixes incorrect buffer handling that can
result in cache poisoning, remote execution, and denial of service attacks
when processing ESI responses (bsc#1169659).
CVE-2020-11945: fixes a potential remote execution vulnerability
when using HTTP Digest Authentication (bsc#1170313).
CVE-2019-12520, CVE-2019-12524: fixes a potential ACL bypass, cache-bypass
and cross-site scripting attack when processing invalid HTTP
Request messages (bsc#1170423).