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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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* use username/group 'exim' instead of mail
* register configuration file
* make sure /usr/lib/exim/lookups exists
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Ship default configuration /etc/exim/exim.conf as well as
a simple procd init script. Enable building with LMTP for better
integration with dovecot.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Several exploitable vulnerabilities in Exim were reported to us and are
fixed.
Local vulnerabilities
- CVE-2020-28007: Link attack in Exim's log directory
- CVE-2020-28008: Assorted attacks in Exim's spool directory
- CVE-2020-28014: Arbitrary PID file creation
- CVE-2020-28011: Heap buffer overflow in queue_run()
- CVE-2020-28010: Heap out-of-bounds write in main()
- CVE-2020-28013: Heap buffer overflow in parse_fix_phrase()
- CVE-2020-28016: Heap out-of-bounds write in parse_fix_phrase()
- CVE-2020-28015: New-line injection into spool header file (local)
- CVE-2020-28012: Missing close-on-exec flag for privileged pipe
- CVE-2020-28009: Integer overflow in get_stdinput()
Remote vulnerabilities
- CVE-2020-28017: Integer overflow in receive_add_recipient()
- CVE-2020-28020: Integer overflow in receive_msg()
- CVE-2020-28023: Out-of-bounds read in smtp_setup_msg()
- CVE-2020-28021: New-line injection into spool header file (remote)
- 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-2020-28019: Failure to reset function pointer after BDAT error
- CVE-2020-28024: Heap buffer underflow in smtp_ungetc()
- CVE-2020-28018: Use-after-free in tls-openssl.c
- CVE-2020-28025: Heap out-of-bounds read in pdkim_finish_bodyhash()
The update to 4.94.2 also integrates a fix for a printf format issue
previously addressed by a local patch which is removed.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Signed-off-by: Rosen Penev <rosenp@gmail.com>
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CentOS 7 has an old GCC that does not default to c11.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
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Add Exim MTA variants:
* exim
plain variant without any TLS library which hence comes
without TLS, DANE and DKIM.
* exim-openssl
linked against libopenssl
* exim-gnutls
linked against libgnutls
* exim-ldap
linked against libopenssl, libopenldap and libsasl2
Provide packages for lookup modules
* cdb
* dbmdb
* dnsdb
* json (depends on jansson)
* mysql (depends on libmariadb)
* passwd
* pgsql (depends on libpq)
* redis (depends on libhiredis)
* sqlite (depends on libsqlite3)
Note:
As gnutls requires libunbound which depends on libopenssl to provide
libgnutls-dane, disable DANE by default when building with gnutls.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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