Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.
From VID-CF2105C6-551B-11E9-B95C-B499BAEBFEAF:
The Apache httpd Project reports:
Apache HTTP Server privilege escalation from modules' scripts
(CVE-2019-0211) (important)
mod_auth_digest access control bypass (CVE-2019-0217)
(important)
mod_ssl access control bypass (CVE-2019-0215) (important)
mod_http2, possible crash on late upgrade (CVE-2019-0197) (low)
mod_http2, read-after-free on a string compare (CVE-2019-0196)
(low)
Apache httpd URL normalization inconsistincy (CVE-2019-0220)
(low)
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