Make sure tkeylen is initialised properly when encrypting CMS messages.

'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
int in OpenSSL 0.9.8, making it still vulnerable. Fix by
rejecting negative len parameter.

Thanks to the many people who reported this bug and to Tomas Hoger
<thoger@redhat.com> for supplying the fix.

BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
in CRYPTO_realloc_clean.

Thanks to Tavis Ormandy, Google Security Team, for discovering this
issue and to Adam Langley <agl@chromium.org> for fixing it. (CVE-2012-2110)

Submitted by: John Fitzgibbon <john_fitzgibbon@yahoo.com>

Time is always encoded as 4 bytes, not sizeof(Time).

the old code came from SSLeay days before TLS was even supported.

continue with symmetric decryption process to avoid leaking timing
information to an attacker.

Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
this issue. (CVE-2012-0884)

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix DTLS timeout handling.

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Reduce MTU after failed transmissions. [0.9.8 version of patch]

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Reduce MTU after failed transmissions.

Fix inverted range problem in RFC3779 code.

Thanks to Andrew Chi for generating test cases for this bug.

[from HEAD]

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix possible DTLS timer deadlock.

Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for reporting this bug.

Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for reporting this bug.

Submitted by: Tomas Mraz <tmraz@redhat.com>

Tolerate bad MIME headers in parser.