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Re: (ITS#4739) Server crashes every time alias is dereferenced
by bgmilne＠staff.telkomsa.net 09 Nov '06

09 Nov '06

--nextPart2681002.ZbxIqWnAlZ Content-Type: text/plain; charset="iso-8859-6" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Wednesday 08 November 2006 21:18, hardimankevin(a)yahoo.com wrote: > Full_Name: Kevin Hardiman > Version: 2.3.27 > OS: Linux (Mandriva 2007) > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (24.90.130.182) > > > Using the very simple alias below, OpenLDAP will crash every time it is > dereferenced: > > dn: uid=3Dtest,ou=3DUsers,ou=3Dbladiant,ou=3Dsmb,ou=3DCore Services,dc=3D= example,dc=3Dcom > objectClass: alias > objectclass: extensibleObject > uid: test > aliasedObjectName: uid=3Dtest,ou=3DUsers,dc=3Dexample,dc=3Dcom > > This error has been experience with OpenLDAP releases 2.3.6 and 2.3.27, > both in the form of provided Mandriva packages. I also have seen a number > of references to this error in previous releases, with no explicit fix.=20 > Please advise. Can't reproduce: $ ldapsearch -h localhost -LLL -s children -a never -x -b "ou=3DTest=20 Aliases,dc=3Dranger,dc=3Ddnsalias,dc=3Dcom" dn: uid=3Dbgmilne,ou=3DTest Aliases,dc=3Dranger,dc=3Ddnsalias,dc=3Dcom objectClass: alias objectClass: extensibleObject uid: bgmilne aliasedObjectName: uid=3Dbgmilne,ou=3DPeople,dc=3Dranger,dc=3Ddnsalias,dc= =3Dcom $ ldapsearch -h localhost -LLL -s children -a always -x -b "ou=3DTest=20 Aliases,dc=3Dranger,dc=3Ddnsalias,dc=3Dcom" objectclass dn: uid=3Dbgmilne,ou=3DPeople,dc=3Dranger,dc=3Ddnsalias,dc=3Dcom objectClass: mailRecipient objectClass: person objectClass: organizationalPerson objectClass: inetOrgPerson objectClass: posixAccount objectClass: top objectClass: kerberosSecurityObject objectClass: shadowAccount objectClass: sambaSamAccount $ rpm -q openldap-servers openldap-servers-2.3.27-1mdv2007.0 $ rpm -q openldap-servers --qf "%{PACKAGER}\n" Buchan Milne <bgmilne(a)mandriva.org> Regards, Buchan =2D-=20 Buchan Milne ISP Systems Specialist - Monitoring/Authentication Team Leader B.Eng,RHCE(803004789010797),LPIC-2(LPI000074592) --nextPart2681002.ZbxIqWnAlZ Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQBFU1IvrJK6UGDSBKcRAhkQAKDCpV5W+plszHrf/GIqkx2yMcTtwQCePs67 JaAwrB9eaYnzEcK7uS41ZEo= =4WpH -----END PGP SIGNATURE----- --nextPart2681002.ZbxIqWnAlZ--

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Re: (ITS#4739) Server crashes every time alias is dereferenced
by hyc＠symas.com 08 Nov '06

08 Nov '06

hardimankevin(a)yahoo.com wrote: > Full_Name: Kevin Hardiman > Version: 2.3.27 > OS: Linux (Mandriva 2007) > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (24.90.130.182) > > > Using the very simple alias below, OpenLDAP will crash every time it is > dereferenced: > > dn: uid=test,ou=Users,ou=bladiant,ou=smb,ou=Core Services,dc=example,dc=com > objectClass: alias > objectclass: extensibleObject > uid: test > aliasedObjectName: uid=test,ou=Users,dc=example,dc=com > > This error has been experience with OpenLDAP releases 2.3.6 and 2.3.27, both in > the form of provided Mandriva packages. I also have seen a number of references > to this error in previous releases, with no explicit fix. Please advise. Well, considering that no one has reported any such problem during the whole time releases 2.3.6-2.3.27 were published, it's no surprise that there has been no fix yet. There's not enough information here to reproduce the bug. What backend are you using, what other entries are in the database? In particular, does "uid=test,ou=Users,dc=example,dc=com" exist? You should provide a sample slapd.conf and minimal LDIF needed to reproduce the error. -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc OpenLDAP Core Team http://www.openldap.org/project/

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(ITS#4741) ppolicy.c improperly discards return value of check_password() function
by lsherida＠nccs.nasa.gov 08 Nov '06

08 Nov '06

Full_Name: Lee Sheridan Version: 2.3.27 OS: Debian GNU/Linux (etch) URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (69.168.13.7) In servers/slapd/overlays/ppolicy.c, check_password_quality function, at line 530, the value of the 'ok' variable is discarded by unconditionally assigning it the value LDAP_SUCCESS. The variable is the return code of the user-defined check_password() function, which is assigned at line 522. The next if-then-else block is checking to see if the module reported an error, at which point 'ok' would be assigned LDAP_OTHER regardless of what check_password() returned. A superfluous else block appears after this check, assigning 'ok' to LDAP_SUCCESS. It works fine for me if I remove the else block. Thanks,

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(ITS#4740) SASL bind assert
by hyc＠OpenLDAP.org 08 Nov '06

08 Nov '06

Full_Name: Howard Chu Version: all < 2.3.29 OS: URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (76.168.84.21) Submitted by: hyc Apparently this bug was discovered by Evgeny Legerov but was not previously reported to anyone on the Project. The bug is now fixed in HEAD and RE23. Performing a SASL Bind with an authcid longer than 255 characters, with a space as the 255th character, will cause the length of the normalized name to be computed incorrectly, failing to take into account the escaping of the space character. (The SASL Bind code truncates all incoming names longer than 255 to exactly 255 characters.) This triggers an assert in libldap because the resulting string length doesn't match what we expected it to be. The fix is in libldap/getdn.c rev 1.134. The MITRE CVE record for this bug is http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5779

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(ITS#4739) Server crashes every time alias is dereferenced
by hardimankevin＠yahoo.com 08 Nov '06

08 Nov '06

Full_Name: Kevin Hardiman Version: 2.3.27 OS: Linux (Mandriva 2007) URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (24.90.130.182) Using the very simple alias below, OpenLDAP will crash every time it is dereferenced: dn: uid=test,ou=Users,ou=bladiant,ou=smb,ou=Core Services,dc=example,dc=com objectClass: alias objectclass: extensibleObject uid: test aliasedObjectName: uid=test,ou=Users,dc=example,dc=com This error has been experience with OpenLDAP releases 2.3.6 and 2.3.27, both in the form of provided Mandriva packages. I also have seen a number of references to this error in previous releases, with no explicit fix. Please advise. Kevin Hardiman

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Re: (ITS#4738) hdb livelock
by hyc＠symas.com 07 Nov '06

07 Nov '06

richton(a)nbcs.rutgers.edu wrote: > Please visit > https://www.nbcs.rutgers.edu/~richton/richton-20061107-livelock_2.txt for > an updated backtrace. This one almost looks like it has lock contention, > and a writewaiter assert is notably missing... The trace shows several threads backing off because they think some other thread is about to read the entry from the database. At a guess, none of them is actually going to perform the database read. Most likely a lock is missing here. -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc OpenLDAP Core Team http://www.openldap.org/project/

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Re: (ITS#4738) hdb livelock
by richton＠nbcs.rutgers.edu 07 Nov '06

07 Nov '06

Please visit https://www.nbcs.rutgers.edu/~richton/richton-20061107-livelock_2.txt for an updated backtrace. This one almost looks like it has lock contention, and a writewaiter assert is notably missing... I'm going to rm the bad link, it can only hurt people. On Tue, 7 Nov 2006, Aaron Richton wrote: > Sigh. As may be obvious to anybody unfortunate enough to look at the link, I > seem to have gotten my core files confused. I have a bunch of db_stat -CA > done properly, but the backtrace for this may be lost to the bit bucket. I'll > poke around my systems and see what I can find, but I think it might be > nothing. A syslog of "waiting for 1027 threads to terminate" might be the > only other durable evidence. >

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Re: (ITS#4738) hdb livelock
by richton＠nbcs.rutgers.edu 07 Nov '06

07 Nov '06

Sigh. As may be obvious to anybody unfortunate enough to look at the link, I seem to have gotten my core files confused. I have a bunch of db_stat -CA done properly, but the backtrace for this may be lost to the bit bucket. I'll poke around my systems and see what I can find, but I think it might be nothing. A syslog of "waiting for 1027 threads to terminate" might be the only other durable evidence.

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(ITS#4738) hdb livelock
by richton＠nbcs.rutgers.edu 07 Nov '06

07 Nov '06

Full_Name: Aaron Richton Version: 2.3.28+4720 OS: Solaris 9 URL: https://www.nbcs.rutgers.edu/~richton/richton-20061107-livelock.txt Submission from: (NULL) (128.6.31.137) See also ITS#4720, although this is slightly different. hdb livelock (CPU 100% gunned) on 2.3.28 with patch for ITS #4720 (syncprov.c 1.161 -> 1.162 diff). See URL for backtrace and db_stat -CA of the database on threads t@13 and t@16, which (if I'm reading correctly) are the affected ones. I have the db_stat -CA of the other backends saved if I misread, and the core file available if variables are needed. Aside, I know you're looking for RE23 testing, I was kicking the tires of that and about to put it up when this happened. Soon I'll be there, regardless of how this turns out, due to writewaiter concern.

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Re: (ITS#4737) "overlay not found"
by ando＠sys-net.it 07 Nov '06

07 Nov '06

mmollet(a)westar.com wrote: > Full_Name: Matthieu Mollet > Version: 2.2.13 > OS: Centos 4 > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (208.45.242.10) > > > Built the smbk5pwd.la overlay and installed it with the 2.2.13 openldap that > comes with Centos. Added module = pathto/smbk5pwd.la and overlay = smbk5pwd > slapd fails with "overlay smbk5pwd not found" > the syntax "<keyword> = <value>" has never been implemented in OpenLDAP software; the keyword "module" has never been supported as well. I suggest you read at least slapd.conf(5) (but I suspect you need to read more) before considering the possibility of a software bug. This ITS will be closed. p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.n.c. Via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it ------------------------------------------ Office: +39.02.23998309 Mobile: +39.333.4963172 Email: pierangelo.masarati(a)sys-net.it ------------------------------------------

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