February 2010 - openldap-bugs

(ITS#6468) ACLs in subordinate databases can be ignored

by rein＠OpenLDAP.org

Full_Name: Rein Tollevik Version: CVS HEAD OS: Irrelevant URL: Submission from: (NULL) (2a01:600:0:1:21c:23ff:feab:61cd) Submitted by: rein In a glued database configuration where overlays (syncprov, accesslog) are stacked on top of the glue overlay, ACL evaluation initiated from these overlays can be evaluated by the superior glue database and not the subordinate database where the entry actually exist. I.e, ACLs defined in the subordinate databases are ignored in these cases. A fix that implements bi_access_allowed in the glue overlay is coming, it delegates the call to the actual backend where the entry being referenced exist. An alternative approach I considered was to require the overlays to call select_backend() to find the actual backend where the entry exist, but that would imo obfuscate the modularization of the code. -- Rein Tollevik Basefarm AS

13 years, 4 months

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Re: (ITS#6465) startup error after converting to slapd-config

by gerard.ranke＠kmt.hku.nl

Ralf Haferkamp wrote: > A fix is in HEAD now (servers/slapd/config.c rev 1.513) please test. Thanks! Hopefully I can compile & test tomorrow, I'll let you know. Best, gerard

13 years, 4 months

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Re: (ITS#6465) startup error after converting to slapd-config

by Ralf Haferkamp

A fix is in HEAD now (servers/slapd/config.c rev 1.513) please test.

13 years, 4 months

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Re: (ITS#6465) startup error after converting to slapd-config

by Ralf Haferkamp

This got introduced by the fix for ITS#6419. I am currently working on a fix.

13 years, 4 months

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(ITS#6467) syncrepl enhancements

by hyc＠OpenLDAP.org

Full_Name: Howard Chu Version: 2.5 OS: URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (76.94.188.212) Submitted by: hyc Syncrepl refreshes can be very expensive without a sessionlog, and the syncprov sessionlog is inadequate because it's in-memory only, and doesn't survive a restart. Syncprov should be extended to take advantage of the accesslog overlay if it is available.

13 years, 4 months

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Re: (ITS#6464) Buffer overflow

by csdr＠lthd.com

Sorry. I hope this helps: http://lthd.com/slapd.out On 01/31/2010 01:05 AM, Howard Chu wrote: > csdr(a)lthd.com wrote: >> Full_Name: Chis-Serban Dinu-Razvan >> Version: 2.4.21 >> OS: Fedora 12 >> URL: http://lthd.com/out1.txt >> Submission from: (NULL) (193.231.233.40) >> >> >> I have a master ldap server running openldap 2.4.21 and 3 replicas >> running >> 2.4.15 and 2.4.19 and I when I try to delete/rename an object, the >> master dies >> with an buffer overflow error. I mention that before the master was >> 2.4.15 and >> the replica running 2.4.19 died. I have updated the master to 2.4.19 >> and it >> start dyeing. Then I upgraded it to 2.4.21 an it still dies. It dies >> even if the >> syncprov is off. >> > Please provide a stack trace from this crash. Be sure to compile with > debug symbols enabled and no optimization, otherwise we won't be able > to track anything down. >

13 years, 4 months

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Re: (ITS#6466) certificateListValidate rejects valid X.509 CRLs (but not RFC-compliant)

by masarati＠aero.polimi.it

hyc(a)symas.com wrote: >> BTW, what do you mean by "needs some thought" (in the ticket notes)? > > I hadn't decided yet if slapd should log a warning for this or not. A warning, to be useful, should allow to clearly identify the broken piece of data. Where the issue is identified, there's no way to find out the DN of the entry that contains the datum. All you could use is the certificate's content (e.g. issuer DN and so); not sure how helpful it would be. p.

13 years, 4 months

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Re: (ITS#6466) certificateListValidate rejects valid X.509 CRLs (but not RFC-compliant)

by hyc＠symas.com

Erwann Abalea wrote: > Hodie III Kal. Feb. MMX, Howard Chu scripsit: (Sorry, just had to laugh, using a ~3000 year old language in email...) >> erwann.abalea(a)keynectis.com wrote: >> Also note that, technically, LDAP is defined to conform to the 1993 >> edition of the X.500 specs, and X.509(1993) makes no such allowance >> here. > > I didn't know that LDAP was designed to conform to a specific edition > of the standard. Isn't that strange? After all, it should also refuse > to handle X.509v2 CRLs, and X.509v3 certificates, which appear for the > first time in the 1997 edition. > Anyway, I hadn't thought about looking at older revisions of the X.509 > standard. You're right, my 1997 edition doesn't say anything about > this, and my 2000 edition (a french version) has the same text as the > 2005 one. See RFC4510, section 2. Yes, it's certainly an inconsistency in the LDAP spec, that RFC4513 requires use of subjectAltNames which clearly require X.509v3 certs but the only normative references to the necessary edition of X.509 is outside the core specification. (Looking again I see that RFC4523 references X.509(2000) so it appears that some portions of newer X.500 editions are being incorporated, piecemeal...) > Anyway, thank you again. I'll test the head version and will come back > later. > BTW, what do you mean by "needs some thought" (in the ticket notes)? I hadn't decided yet if slapd should log a warning for this or not. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

13 years, 4 months

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Re: (ITS#6466) certificateListValidate rejects valid X.509 CRLs (but not RFC-compliant)

by erwann.abalea＠keynectis.com

Hodie III Kal. Feb. MMX, Howard Chu scripsit: > erwann.abalea(a)keynectis.com wrote: > >When no certificate is revoked, the revokedCertificate element SHOULD be > >omitted, instead of being included as an empty SEQUENCE OF SEQUENCE. RFC5280 has > >changed the SHOULD into a MUST, but I don't think this is checked by the > >function. I think it only skips over the next element (in my case, the > >crlExtensions). > > Thanks for the report. The code in CVS HEAD has been patched to > silently accept this case. However, it's worth pointing out that > even in X.509(2005): Thank you for having corrected it. > >>>> > If none of the certificates covered by this CRL have been revoked, > it is strongly recommended that > revokedCertificates parameter be omitted from the CRL, rather than being > included with an empty SEQUENCE. > <<<< That's what I meant to write when I wrote that the element SHOULD be omitted. X.509 doesn't prevent such an empty sequence, it only strongly recommends to avoid it. A strong recommendation in ISO terminology is as a SHOULD in RFC2119 meaning. You're right, here. > Also note that, technically, LDAP is defined to conform to the 1993 > edition of the X.500 specs, and X.509(1993) makes no such allowance > here. I didn't know that LDAP was designed to conform to a specific edition of the standard. Isn't that strange? After all, it should also refuse to handle X.509v2 CRLs, and X.509v3 certificates, which appear for the first time in the 1997 edition. Anyway, I hadn't thought about looking at older revisions of the X.509 standard. You're right, my 1997 edition doesn't say anything about this, and my 2000 edition (a french version) has the same text as the 2005 one. > We may consider logging a warning for this case. What software > generated this CRL? It seems to be defective... At first, I also thought it was defective. But after all, the standard doesn't say that this revokedCertificates element MUST be eliminated when no certificate is revoked (I use RFC2119 terminology here, but you certainly got it). I certainly will produce a warning to the software vendor, though. In general, I tend to follow "SHOULD" rules. I don't know what software produced this CRL (yet), I only know who uses it (one of our customers). I'll get in touch with them for that. In the same time, I'll check that we correctly do our job (we're also a PKI software vendor). Anyway, thank you again. I'll test the head version and will come back later. BTW, what do you mean by "needs some thought" (in the ticket notes)? -- Erwann ABALEA <erwann.abalea(a)keynectis.com> ----- "Common sense is the collection of prejudices acquired by age 18." - Albert Einstein

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openldap-bugs February 2010