Changelog
exim4 (4.92-8+deb10u6) buster-security; urgency=high
* Fix several security vulnerabilities reported by Qualys and add related
robustness improvements. (Originally fixed in upstream release 4.94.3 and
in upstream GIT branch exim-4.92.3+fixes. (Special thanks to Heiko)
+ CVE-2020-28025: Heap out-of-bounds read in pdkim_finish_bodyhash()
+ CVE-2020-28018: Use-after-free in tls-openssl.c
+ CVE-2020-28023: Out-of-bounds read in smtp_setup_msg()
+ CVE-2020-28010: Heap out-of-bounds write in main()
+ CVE-2020-28011: Heap buffer overflow in queue_run()
+ CVE-2020-28013: Heap buffer overflow in parse_fix_phrase()
+ CVE-2020-28017: Integer overflow in receive_add_recipient()
+ CVE-2020-28022: Heap out-of-bounds read and write in extract_option()
+ CVE-2020-28026: Line truncation and injection in spool_read_header()
+ CVE-2020-28015 and CVE-2020-28021: New-line injection into spool header
file.
+ CVE-2020-28009: Integer overflow in get_stdinput()
+ CVE-2020-28024: Heap buffer underflow in smtp_ungetc()
+ CVE-2020-28012: Missing close-on-exec flag for privileged pipe
+ CVE-2020-28019: Failure to reset function pointer after BDAT error
+ CVE-2020-28007: Link attack in Exim's log directory
+ CVE-2020-28008: Assorted attacks in Exim's spool directory
+ CVE-2020-28014, CVE-2021-27216: Arbitrary PID file creation, clobbering,
and deletion.
-- Andreas Metzler <email address hidden> Sat, 01 May 2021 11:42:39 +0200
