I can confirm that using proposed version of openscap does solve the issue:
$ dpkg -l | grep openscap ii libopenscap8 1.2.15-1ubuntu0.4 amd64 Set of libraries enabling integration of the SCAP line of standards
$ ./run.sh oscap oval eval com.ubuntu.bionic.cve.oval.xml Definition oval:com.ubuntu.bionic:def:2022436800000000: false Definition oval:com.ubuntu.bionic:def:100: true Evaluation done. oscap oval eval oci.com.ubuntu.bionic.cve.oval.xml Definition oval:com.ubuntu.bionic:def:2022436800000000: false Evaluation done.
I can confirm that using proposed version of openscap does solve the issue:
$ dpkg -l | grep openscap
ii libopenscap8 1.2.15-1ubuntu0.4 amd64 Set of libraries enabling integration of the SCAP line of standards
$ ./run.sh bionic. cve.oval. xml ubuntu. bionic: def:20224368000 00000: false ubuntu. bionic: def:100: true ubuntu. bionic. cve.oval. xml ubuntu. bionic: def:20224368000 00000: false
oscap oval eval com.ubuntu.
Definition oval:com.
Definition oval:com.
Evaluation done.
oscap oval eval oci.com.
Definition oval:com.
Evaluation done.