https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200903
Xin LI <delp...@freebsd.org> changed:
What |Removed |Added
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CC| |delp...@freebsd.org
Assignee|freebsd-bugs@FreeBSD.org |r...@freebsd.org
--- Comment #1 from Xin LI <delp...@freebsd.org> ---
We are aware of this issue and there will be an EN to correct this.
In the meantime, please use this workaround:
20150614:
The import of openssl to address the FreeBSD-SA-15:10.openssl
security advisory includes a change which rejects handshakes
with DH parameters below 768 bits. sendmail releases prior
to 8.15.2 (not yet released), defaulted to a 512 bit
DH parameter setting for client connections. To work around
this interoperability, sendmail can be configured to use a
2048 bit DH parameter by:
1. Edit /etc/mail/`hostname`.mc
2. If a setting for confDH_PARAMETERS does not exist or
exists and is set to a string beginning with '5',
replace it with '2'.
3. If a setting for confDH_PARAMETERS exists and is set to
a file path, create a new file with:
openssl dhparam -out /path/to/file 2048
4. Rebuild the .cf file:
cd /etc/mail/; make; make install
5. Restart sendmail:
cd /etc/mail/; make restart
A sendmail patch is coming, at which time this file will be
updated.
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