CVE-2023-2977

A vulnerbility was found in OpenSC. This security flaw cause a buffer
overrun vulnerability in pkcs15 cardos_have_verifyrc_package. The attacker
can supply a smart card package with malformed ASN1 context. The
cardos_have_verifyrc_package function scans the ASN1 buffer for 2 tags,
where remaining length is wrongly caculated due to moved starting pointer.
This leads to possible heap-based buffer oob read. In cases where ASAN is
enabled while compiling this causes a crash. Further info leak or more
damage is possible.