OpenSSL is a toolkit that implements the Secure Sockets Layer and Transport Layer Security protocols, as well as a full-strength general-purpose cryptography library. compat-openssl10 provides the legacy 1.0 version of OpenSSL for use with older binaries. Security Fix: * compat-openssl10: Infinite loop in BN_mod_sqrt reachable when parsing certificates For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.