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A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities (CAs) only had excluded name constraints. A remote attacker could exploit this...

A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending...

A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in merge_handshake_packet() where incoming handshake fragments are matched and merged based solely...

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls...

The PKCS#7 padding check performed during decryption was not constant-time, potentially leaking information about the padding bytes through timing differences.

For a server using an RSA key backed by a PKCS#11 token, a client sending an extremely short premaster secret during an RSA key exchange could trigger a short heap overread.

Appending to a PKCS#12 bag that already contained 32 elements could write past the bag's internal array.

Changing the Security Officer PIN with gnutls_pkcs11_token_set_pin() with oldpin == NULL for a token lacking a protected authentication path led to a use-after-free.

Validation of certificates with oversized Subject Alternative Names would fall back to checking DNS hostnames against Common Name.

Certificates containing URI or SRV Subject Alternative Names would fall back to checking DNS hostnames against Common Name, allowing potential misuse of such certificates beyond their original purpose.