treeRead in hdf/btree.c in libmysofa before 0.7 does not properly validate multiplications and additions.
https://usn.ubuntu.com/4033-1/
https://github.com/hoene/libmysofa/releases/tag/v0.7
https://github.com/hoene/libmysofa/compare/49aa1c7...2ed84bb
https://github.com/hoene/libmysofa/commit/d39a171e9c6a1c44dbdf43f9db6c3fbd887e38c1