/usr/share/lintian/overrides/libilmbase12 is in libilmbase12 2.2.0-11ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | libilmbase12: package-name-doesnt-match-sonames libHalf12 libIex-2-2-12 libIexMath-2-2-12 libIlmThread-2-2-12 libImath-2-2-12
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