LibreSSL 3.2.1 Released

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LibreSSL 3.2.1 Released

Brent Cook
We have released LibreSSL 3.2.1, which will be arriving in the
LibreSSL directory of your local OpenBSD mirror soon.

This is the second development release from the 3.2.x series, which will
eventually be part of OpenBSD 6.8. It includes the following changes:

    * Propagate alerts from the read half of the TLSv1.3 record layer to I/O
      functions.

    * Send a record overflow alert for TLSv1.3 messages having overlong
      plaintext or inner plaintext.

    * Send an illegal parameter alert if a client sends an invalid DH key
      share.

    * Document PKCS7_final(3), PKCS7_add_attribute(3).

    * Collapse x509v3 directory into x509.

    * Improve TLSv1.3 client certificate selection to allow EC certificates
      instead of only RSA certificates.

    * Fail on receiving an invalid NID in X509_ATTRIBUTE_create() instead
      of constructing a broken objects that may cause NULL pointer accesses.

    * Add support for additional GOST curves from RFC 7836 and
      draft-deremin-rfc4491-bis.

    * Add OIDs for HMAC using the Streebog hash function.

    * Allow GOST R 34.11-2012 in PBE/PBKDF2/PKCS#5.

    * Enable GOST_SIG_FORMAT_RS_LE when verifying certificate signatures.

    * Handle GOST in ssl_cert_dup().

    * Stop sending GOST R 34.10-94 as a CertificateType.

    * Use IANA allocated GOST ClientCertificateTypes.

    * Add a custom copy handler for AES keywrap to fix a use-after-free.

    * Enforce in the TLSv1.3 server that that ClientHello messages after
      a HelloRetryRequest match the original ClientHello as per RFC 8446
      section 4.1.2

    * Document more PKCS7 attribute functions.

    * Document PKCS7_get_signer_info(3).

    * Document PEM_ASN1_read(3) and PEM_ASN1_read_bio(3).

    * Document PEM_def_callback(3).

    * Document EVP_read_pw_string_min(3).

    * Merge documentation of X509_get0_serialNumber from OpenSSL 1.1.1.

    * Document error handling of X509_PUBKEY_get0(3) and X509_PUBKEY_get(3)

    * Document X509_get0_pubkey_bitstr(3).

    * Fix an off-by-one in the CBS padding removal. From BoringSSL.

    * Enforce restrictions on extensions present in the ClientHello as per
      RFC 8446, section 9.2.

    * Add new CMAC_Init(3) and ChaCha(3) manual pages.

    * Fix SSL_shutdown behavior to match the legacy stack.  The previous
      behavior could cause a hang.

    * Add initial support for openbsd/powerpc64.

    * Make the message type available in the internal TLS extensions API
      functions.

    * Enable TLSv1.3 for the generic TLS_method().

    * Convert openssl(1) s_client option handling.

    * Document openssl(1) certhash.

    * Convert openssl(1) verify option handling.

    * Fix a longstanding bug in PEM_X509_INFO_read_bio(3) that could cause
      use-after-free and double-free issues in calling programs.

    * Document PEM_X509_INFO_read(3) and PEM_X509_INFO_read_bio(3).

    * Handle SSL_MODE_AUTO_RETRY being changed during a TLSv1.3 session.

    * Convert openssl(1) s_server option handling.

    * Add minimal info callback support for TLSv1.3.

    * Refactor, clean up and simplify some SSL3/DTLS1 record writing code.

    * Correctly handle server requests for an OCSP response.

    * Add the P-521 curve to the list of curves supported by default
      in the client.

    * Convert openssl(1) req option handling.

    * Avoid calling freezero with a negative size if a server sends a
      malformed plaintext of all zeroes.

    * Send an unexpected message alert if no valid content type is found
      in a TLSv1.3 record.

The LibreSSL project continues improvement of the codebase to reflect modern,
safe programming practices. We welcome feedback and improvements from the
broader community. Thanks to all of the contributors who helped make this
release possible.