* New upstream security release.
+ Release based on +fixes branch.
+ Fixes multiple security vulnerabilities reported by Qualys and adds
related robustness improvements. (Special thanks to Heiko)
CVE-2020-28023: Out-of-bounds read in smtp_setup_msg()
CVE-2020-28007: Link attack in Exim's log directory
CVE-2020-28016: Heap out-of-bounds write in parse_fix_phrase()
CVE-2020-28012: Missing close-on-exec flag for privileged pipe
CVE-2020-28024: Heap buffer underflow in smtp_ungetc()
CVE-2020-28009: Integer overflow in get_stdinput()
CVE-2020-28015, CVE-28021: New-line injection into spool header file
CVE-2020-28026: Line truncation and injection in spool_read_header()
CVE-2020-28022: Heap out-of-bounds read and write in extract_option()
CVE-2020-28017: Integer overflow in receive_add_recipient()
CVE-2020-28013: Heap buffer overflow in parse_fix_phrase()
CVE-2020-28011: Heap buffer overflow in queue_run()
CVE-2020-28010: Heap out-of-bounds write in main()
CVE-2020-28018: Use-after-free in tls-openssl.c
CVE-2020-28025: Heap out-of-bounds read in pdkim_finish_bodyhash()
CVE-2020-28014, CVE-2021-27216: PID file handling
CVE-2020-28008: Assorted attacks in Exim's spool directory
CVE-2020-28019: Failure to reset function pointer after BDAT error
* Incorporate debian patches to turn taint failures into warnings.
0a629bd710