OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k does not enforce certain constraints on certificate data, which allows remote attackers to defeat a fingerprint-based certificate-blacklist protection mechanism by including crafted data within a certificate's unsigned portion, related to crypto/asn1/averify.c, crypto/dsa/dsaasn1.c, crypto/ecdsa/ecsvrf.c, and crypto/x509/xall.c.
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "libssl-dev": "1.0.1f-1ubuntu2.8", "libssl-doc": "1.0.1f-1ubuntu2.8", "libssl1.0.0-dbg": "1.0.1f-1ubuntu2.8", "openssl": "1.0.1f-1ubuntu2.8", "libssl1.0.0-udeb": "1.0.1f-1ubuntu2.8", "libssl1.0.0": "1.0.1f-1ubuntu2.8", "libcrypto1.0.0-udeb": "1.0.1f-1ubuntu2.8" } ] }