0.12.1

Changelog since version 0.12.0:

• Security fix ⚠️ (CVE-2023-25824): Remove an infinite loop in blocking read on transport timeout. Mod_gnutls versions from 0.9.0 to 0.12.0 (including) did not properly fail blocking read operations on TLS connections when the transport hit timeouts. Instead it entered an endless loop retrying the read operation, consuming CPU resources. This could be exploited for denial of service attacks. If trace level logging was enabled, it would also produce an excessive amount of log output during the loop, consuming disk space.

• Replace obsolete Autoconf macros. Generating ./configure now requires Autoconf 2.69 (present in Debian Bullseye).