SEVERE: slapd dumps core upon receiving 8-bit requests (ITS#146)

[paxvel@iname.com]

Full_Name: Pavel Andreev
Version: 1.2.1
OS: FreeBSD 3.1-STABLE
URL: 
Submission from: (NULL) (194.24.240.1)


these logs were produced by typing several russian characters in netscape
messenger's
"to:" field with ldap lookups turned on. 

Apr 28 11:56:59 astra slapd[86675]: conn=4 fd=7 connection from hydra.vumsoft.cz
(194.24.240.62) accepted. 
Apr 28 11:56:59 astra slapd[86675]: conn=4 op=0 BIND dn="" method=128 
Apr 28 11:56:59 astra slapd[86675]: conn=4 op=0 RESULT err=0 tag=97 nentries=0 
Apr 28 11:56:59 astra slapd[86675]: conn=4 op=1 SRCH base="" scope=2
filter="(|(cn=C^FC^YC^W*)(mail=C^FC^YC^W*)(sn=C^FC^YC^W*))" 
Apr 28 11:56:59 astra slapd[86675]: conn=4 op=1 RESULT err=0 tag=101 nentries=0

Apr 28 11:56:59 astra /kernel: pid 86675 (slapd), uid 0: exited on signal 11
(core dumped)

the problem is repeatable with ldapclient:

paxvel@astra~#ldapsearch -h astra 'cn=ÐÁ*'
                                      ^^ these are koi8-r characters for russian
"P" and "A"
Apr 28 12:05:30 astra slapd[86767]: conn=0 fd=7 connection from astra.vumsoft.cz
(194.24.240.1) accepted. 
Apr 28 12:05:30 astra slapd[86767]: conn=0 op=0 BIND dn="" method=128 
Apr 28 12:05:30 astra slapd[86767]: conn=0 op=0 RESULT err=0 tag=97 nentries=0 
Apr 28 12:05:30 astra slapd[86767]: conn=0 op=1 SRCH base="" scope=2
filter="(cn=PA*)" 
Apr 28 12:05:30 astra /kernel: pid 86767 (slapd), uid 0: exited on signal 11
(core dumped)

unfortunately i have no time to study the problem further, but i'm ready to
perform
any tests, should precise steps be provided to me.