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I am not able to reproduce this bug against ipa-server which I used for reproducing bug 1104069 in rhel6, using bad_sasl.pl program, there are a lot of changes in a lot of components between RHEL6 and RHEL7, but the code in perl-LDAP is the same.

+++ This bug was initially created as a clone of Bug #1104069 +++

Description of problem:

perl-LDAP sets wrong length for function _sendmesg and this may cause error in function WRITE in perl-Authen-SASL when length of message is shorter than length. This bug is related with bug described in this bug report https://bugzilla.redhat.com/show_bug.cgi?id=965739.

Version-Release number of selected component (if applicable):

perl-LDAP-0.40-1.el6


How reproducible:


Steps to Reproduce:

Steps how to reproduce this bug are described in bug report for bug 965739. It is needed to use specific version of some packages.

389-ds-base-1.2.11.15-X.el6 where X is less than 22 or use Z-stream version of this package for rhel6.4. I use 389-ds-base-1.2.11.15-22.el6_4.

perl-Authen-SASL-2.13-2.el6

Actual results:

Program bad_sasl.pl from bug report for bug 965739 fails.

Expected results:

No fails.

Additional info:

Patch is added as an attachment.

Version-Release number of selected component (if applicable):

perl-LDAP-0.56-2.el7

The fix is:

--- /usr/share/perl5/Net/LDAP.pm.orig   2014-06-03 08:52:01.194328356 -0400
+++ /usr/share/perl5/Net/LDAP.pm        2014-06-03 08:53:04.561148330 -0400
@@ -801,7 +801,8 @@ sub _sendmesg {
   my $to_send = \( $mesg->pdu );
   my $offset = 0;
   while($offset < length($$to_send)) {
-    my $n = syswrite($socket, substr($$to_send, $offset, 15000), 15000)
+    my $s = substr($$to_send, $offset, 15000);
+    my $n = syswrite($socket, $s, length($s))
       or return _error($ldap, $mesg, LDAP_LOCAL_ERROR,"$!");
     $offset += $n;
   }

Created attachment 924494 [details]
Upstream fix ported to 0.56

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0333.html