lib/x509/verify.c in GnuTLS before 3.1.22 and 3.2.x before 3.2.12 does not properly handle unspecified errors when verifying X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers via a crafted certificate.
{ "binaries": [ { "binary_version": "3.0.11+really2.12.23-12ubuntu2", "binary_name": "gnutls-bin" }, { "binary_version": "2.12.23-12ubuntu2", "binary_name": "libgnutls-dev" }, { "binary_version": "2.12.23-12ubuntu2", "binary_name": "libgnutls-openssl27" }, { "binary_version": "2.12.23-12ubuntu2", "binary_name": "libgnutls26" }, { "binary_version": "2.12.23-12ubuntu2", "binary_name": "libgnutlsxx27" } ], "availability": "No subscription required" }