The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.
The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.
https://github.com/OpenSC/OpenSC/releases/tag/0.21.0 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22967 https://github.com/OpenSC/OpenSC/commit/9d294de90d1cc66956389856e60b6944b27b4817