In Botan before 2.19.3, it is possible to forge OCSP responses due to a certificate verification error. This issue was introduced in Botan 1.11.34 (November 2016).
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2.19.3+dfsg-1ubuntu1", "binary_name": "botan" }, { "binary_version": "2.19.3+dfsg-1ubuntu1", "binary_name": "botan-dbgsym" }, { "binary_version": "2.19.3+dfsg-1ubuntu1", "binary_name": "libbotan-2-19" }, { "binary_version": "2.19.3+dfsg-1ubuntu1", "binary_name": "libbotan-2-19-dbgsym" }, { "binary_version": "2.19.3+dfsg-1ubuntu1", "binary_name": "libbotan-2-dev" }, { "binary_version": "2.19.3+dfsg-1ubuntu1", "binary_name": "libbotan-2-doc" }, { "binary_version": "2.19.3+dfsg-1ubuntu1", "binary_name": "python3-botan" } ] }