On macOS High Sierra 10.13.6 the Font Pack for Reader DC latest version fails to install. From Console logs:
default 10:21:13.259024 +0800 authd Succeeded authorizing right 'system.install.software' by client '/System/Library/PrivateFrameworks/PackageKit.framework/Versions/A/Resources/installd' [493] for authorization created by '/System/Library/CoreServices/Installer.app' [672] (4,0)
default 10:21:13.259740 +0800 authd engine: - validating session owner edo (501) for system.install.software.iap
default 10:21:13.259816 +0800 authd engine: - session owner 501 (does NOT satisfy rule), reason -1
default 10:21:13.337098 +0800 trustd cert[0]: ExtendedKeyUsage =(leaf)[]> 0
default 10:21:13.344173 +0800 trustd Failed to talk to secd after 4 attempts.
default 10:21:13.344428 +0800 trustd Failed to talk to secd after 4 attempts.
default 10:21:13.361088 +0800 trustd OCSPResponse: single response has extension(s).
default 10:21:13.373617 +0800 trustd cert[1]: IntermediateEKU =(path)[]> 0
default 10:21:13.376766 +0800 installd Trust evaluate failure: [leaf ExtendedKeyUsage] [ca1 IntermediateEKU]
default 10:21:13.394305 +0800 trustd OCSPResponse: single response has extension(s).
default 10:21:13.431871 +0800 trustd OCSPResponse: single response has extension(s).
default 10:21:13.444086 +0800 trustd OCSPResponse: single response has extension(s).
default 10:21:13.860037 +0800 Finder LSExceptions shared instance invalidated for timeout.
default 10:21:14.532481 +0800 com.apple.WebKit.WebContent Current memory footprint: 237 MB
default 10:21:14.855180 +0800 Installer LSExceptions shared instance invalidated for timeout.
default 10:21:17.291639 +0800 trustd cert[2]: AnchorTrusted =(leaf)[force]> 0
default 10:21:17.300906 +0800 authd MacOS error: -67050
default 10:21:17.330302 +0800 trustd cert[0]: ExtendedKeyUsage =(leaf)[]> 0
default 10:21:17.342026 +0800 trustd cert[1]: IntermediateEKU =(path)[]> 0
default 10:21:17.345520 +0800 Installer Trust evaluate failure: [leaf ExtendedKeyUsage] [ca1 IntermediateEKU]
default 10:21:17.471050 +0800 Installer The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.
Please advise. Thanks.