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96 Commits
Author SHA1 Message Date
W.C.A. Wijngaards ff28b7e5cf - For #1483: The failure reason when an NSEC NXDOMAIN is 
encountered when looking for an insecure delegation, is
  fixed to mention the NSEC records, instead of nonexistent
  NSEC3 records, that it attempted.
 2026-07-31 09:53:47 +02:00
W.C.A. Wijngaards 5eb362a6c0 - Fix that the aggressive negative cache does not insert NSEC 
records with overreaching next owner name. Also the result
  is not above the trust anchor's bailiwick. Also RRSIGS are
  not considered valid when an NSEC next owner name is not
  under the signer zone name. Thanks to Qifan Zhang, Palo
  Alto Networks, for the report.
 2026-07-23 16:17:59 +02:00
W.C.A. Wijngaards 91ac449bcd Merge branch 'branch-1.25.2' 2026-07-22 11:33:54 +02:00
W.C.A. Wijngaards f7637a4f18 - Fix CVE-2026-44690, Cross-zone wildcard cache poisoning via 
RRSIG.labels manipulation. Thanks to Qifan Zhang, Palo Alto
  Networks, for the report.
 2026-07-22 10:12:38 +02:00
W.C.A. Wijngaards fea0ff550b - Fix CVE-2026-46582, A wildcard replay, as another piece of data, 
triggers poisoning in the serve expired reply path. Thanks to
  Qifan Zhang, Palo Alto Networks, for the report.
 2026-07-22 10:07:52 +02:00
W.C.A. Wijngaards fb2745024a - Fix that validator caps number of ANY RRsets it can 
validate, and the wait timer is shortened. Thanks to Qifan
  Zhang, Palo Alto Networks, for the report.
 2026-05-27 13:38:10 +02:00
W.C.A. Wijngaards 3692517a41 Merge branch 'branch-1.25.1' 2026-05-20 11:19:56 +02:00
W.C.A. Wijngaards 94d5babaee - Fix CVE-2026-42959, Crash during DNSSEC validation of malicious 
content. Thanks to Qifan Zhang, Palo Alto Networks, for the report.
 2026-05-20 10:14:32 +02:00
W.C.A. Wijngaards aa9f1e68ff - Fix val_find_DS for robustness, to check the result of 
packet_rrset_copy_region before using it. Thanks to Xin Wang
  and Jiajia Liu, Northwestern Polytechnical University, for
  the report.
 2026-05-15 14:27:18 +02:00
W.C.A. Wijngaards 8a25a97687 - Fix that a DNAME with an unsigned CNAME is checked for 
the correct match. This stops that for certain zone
  configurations an unchecked unsigned CNAME could get
  secure status. Thanks to Qifan Zhang, Palo Alto Networks
  for the report.
 2026-04-21 13:19:13 +02:00
Yorgos Thessalonikefs 73e408f1d0 A few changes for TTL processing: 
- Cached messages that reach 0 TTL are considered expired. This prevents
  Unbound itself from issuing replies with TTL 0 and possibly causing a
  thundering herd at the last second. Upstream replies of TTL 0 still
  get the usual pass-through but they are not considered for caching
  from Unbound or any of its caching modules.
- 'serve-expired-reply-ttl' is changed and is now capped by the original
  TTL value of the record to try and make some sense when replying
  with expired records.
- TTL decoding was updated to adhere to RFC8767 section 4 where a set
  high-order bit means the value is positive instead of 0.
 2025-09-15 10:03:35 +02:00
W.C.A. Wijngaards bed7cc2a90 - Fix that validation reason failure that uses string print uses 
separate buffer that is passed, from the scratch validation buffer.
 2024-07-08 15:29:20 +02:00
W.C.A. Wijngaards 4c2da2b979 - Fix validation for repeated use of a DNAME record. 2024-06-06 15:28:21 +02:00
W.C.A. Wijngaards 2a255076f5 - Fix validator classification of qtype DNAME for positive and 
redirection answers, and fix validator signature routine for dealing
  with the synthesized CNAME for a DNAME without previously
  encountering it and also for when the qtype is DNAME.
 2024-03-08 14:10:06 +01:00
W.C.A. Wijngaards 9a00877af9 Merge commit '882903f2fa800c4cb6f5e225b728e2887bb7b9ae' 2024-02-13 13:57:56 +01:00
W.C.A. Wijngaards 882903f2fa - Fix CVE-2023-50387, DNSSEC verification complexity can be exploited to 
exhaust CPU resources and stall DNS resolvers.
 2024-02-13 13:02:08 +01:00
W.C.A. Wijngaards 9a2d0238a8 - Fix #983: Sha1 runtime insecure change was incomplete. 2024-01-03 13:33:43 +01:00
George Thessalonikefs 95604a90e8 Review for #759: 
- Keep EDE information for keys close to key creation.
- Fix inconsistencies between reply and cached EDEs.
- Incorporate EDE caching checks in EDE tests.
- Fix some EDE cases where missing DNSKEY was wrongly reported.
 2023-07-19 15:20:44 +02:00
George Thessalonikefs efdd70c7b5 - Cleanup some comments and TODO text. 2022-07-23 19:55:15 +02:00
Yorgos ThessalonikefsandGitHub e102aea751 Merge pull request #660 from InfrastructureServices/sha1-runtime-insecure 
Sha1 runtime insecure
 2022-07-03 22:24:58 +02:00
tcarpayandGitHub 0ce36e8289 Add the basic EDE (RFC8914) cases (#604) 2022-05-06 12:48:53 +02:00
Petr Mensik 33c8baaaba Forward indeterminate status higher 
Create a path where it can result in insecure.
 2022-04-08 16:26:50 +02:00
W.C.A. Wijngaards c6c54f9de4 - Fix validator debug output about DS support, print correct algorithm. 2021-12-06 13:12:44 +01:00
W.C.A. Wijngaards 59ea44322e - Add ./configure --with-deprecate-rsa-1024 that turns off RSA 1024. 2021-05-07 14:28:20 +02:00
Ralph Dolmans 24fc3242fc - Save wildcard RRset from answer with original owner for use in aggressive 
NSEC.


git-svn-id: file:///svn/unbound/trunk@4550 be551aaa-1e26-0410-a405-d3ace91eadb9
 2018-02-22 15:12:31 +00:00
Ralph Dolmans 77f78152ee - Aggressive use of NSEC implementation. Use cached NSEC records to generate 
NXDOMAIN, NODATA and positive wildcard answers.


git-svn-id: file:///svn/unbound/trunk@4522 be551aaa-1e26-0410-a405-d3ace91eadb9
 2018-02-08 13:16:36 +00:00
Wouter Wijngaards 2a6250e3fb - patch for CVE-2017-15105: vulnerability in the processing of 
wildcard synthesized NSEC records.


git-svn-id: file:///svn/unbound/trunk@4441 be551aaa-1e26-0410-a405-d3ace91eadb9
 2018-01-19 09:50:35 +00:00
Wouter Wijngaards fe18bbcb1f - Fix 1416: qname-minimisation breaks TLSA lookups with CNAMEs. 
git-svn-id: file:///svn/unbound/trunk@4322 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-08-30 13:13:43 +00:00
Wouter Wijngaards 0992621839 Fixup compile for clean_additional changes 
git-svn-id: file:///svn/unbound/trunk@4211 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-06-07 09:24:33 +00:00
Wouter Wijngaards 4d7d32c846 - harden algo downgrade also makes unbound more lenient about digest 
algorithms in DS records.


git-svn-id: file:///svn/unbound/trunk@4104 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-04-10 13:38:50 +00:00
Wouter Wijngaards 2785225a43 - Fixup query_info local_alias init. 
git-svn-id: file:///svn/unbound/trunk@3901 be551aaa-1e26-0410-a405-d3ace91eadb9
 2016-10-20 15:05:30 +00:00
Wouter Wijngaards cfef4ba047 - Fix DNSSEC validation of query type ANY with DNAME answers. 
git-svn-id: file:///svn/unbound/trunk@3898 be551aaa-1e26-0410-a405-d3ace91eadb9
 2016-10-20 14:27:13 +00:00
Wouter Wijngaards 134924c4da Remove lint warning. 
git-svn-id: file:///svn/unbound/trunk@3629 be551aaa-1e26-0410-a405-d3ace91eadb9
 2016-02-19 12:16:27 +00:00
Wouter Wijngaards 2c94a5b312 - Print understandable debug log when unusable DS record is seen. 
git-svn-id: file:///svn/unbound/trunk@3627 be551aaa-1e26-0410-a405-d3ace91eadb9
 2016-02-19 10:48:23 +00:00
Wouter Wijngaards e08aa7c5e1 - Fix validation failure in case upstream forwarder (ISC BIND) does 
not have the same trust anchors and decides to insert unsigned NS
  record in authority section.


git-svn-id: file:///svn/unbound/trunk@3329 be551aaa-1e26-0410-a405-d3ace91eadb9
 2015-02-09 11:44:46 +00:00
Wouter Wijngaards 2b90f38a70 And fix #551 REGENT to COPYRIGHT HOLDER in license in file headings. 
git-svn-id: file:///svn/unbound/trunk@3079 be551aaa-1e26-0410-a405-d3ace91eadb9
 2014-02-07 13:28:39 +00:00
Wouter Wijngaards 3e41dedfc5 remove bool. 
git-svn-id: file:///svn/unbound/trunk@2949 be551aaa-1e26-0410-a405-d3ace91eadb9
 2013-08-27 13:47:23 +00:00
Wouter Wijngaards bf67dc2a0d remove bool. 
git-svn-id: file:///svn/unbound/trunk@2948 be551aaa-1e26-0410-a405-d3ace91eadb9
 2013-08-27 13:46:41 +00:00
Wouter Wijngaards fbedfb7429 - Robust checks on dname validity from rdata for dname compare. 
git-svn-id: file:///svn/unbound/trunk@2892 be551aaa-1e26-0410-a405-d3ace91eadb9
 2013-04-25 10:28:25 +00:00
Wouter Wijngaards 85c915f116 - fix missing break for GOST DS hash function. 
- make depend


git-svn-id: file:///svn/unbound/trunk@2721 be551aaa-1e26-0410-a405-d3ace91eadb9
 2012-07-23 12:27:04 +00:00
Wouter Wijngaards daab92e954 - algorithm compromise protection using the algorithms signalled in 
the DS record.  Also, trust anchors, DLV, and RFC5011 receive this,
         and thus, if you have multiple algorithms in your trust-anchor-file
         then it will now behave different than before.  Also, 5011 rollover
         for algorithms needs to be double-signature until the old algorithm
         is revoked.


git-svn-id: file:///svn/unbound/trunk@2358 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-12-21 14:19:55 +00:00
Wouter Wijngaards e9582487d9 Work on validation of multiple algorithms. 
git-svn-id: file:///svn/unbound/trunk@2356 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-12-20 15:58:12 +00:00
Wouter Wijngaards 46345c0809 - Fix bug when DLV below a trust-anchor that uses NSEC3 optout where 
the zone has a secure delegation hosted on the same server did not
         verify as secure (it was insecure by mistake).


git-svn-id: file:///svn/unbound/trunk@2275 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-10-11 12:21:19 +00:00
Wouter Wijngaards 8b274b92aa - Algorithm rollover operational reality intrudes, for trust-anchor, 
5011-store, and DLV-anchor if one key matches it's good enough.


git-svn-id: file:///svn/unbound/trunk@2235 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-09-16 13:40:26 +00:00
Wouter Wijngaards b701d70147 - Return NXDOMAIN after chain of CNAMEs ends at name-not-found. 
git-svn-id: file:///svn/unbound/trunk@2208 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-08-05 14:31:52 +00:00
Wouter Wijngaards 518504ff5c Fix 4035 compliance for algorithms from the DS rrset that MUST sign the DNSKEY. 
git-svn-id: file:///svn/unbound/trunk@2172 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-07-01 12:08:48 +00:00
Wouter Wijngaards bec7e7a552 Fix validation of queries with wildcard names (*.example). 
git-svn-id: file:///svn/unbound/trunk@2070 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-04-08 13:22:29 +00:00
Wouter Wijngaards 6888c78e1e Fix for Roy. 
git-svn-id: file:///svn/unbound/trunk@1982 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-02-15 10:49:03 +00:00
Wouter Wijngaards c68aebb3d7 - Fix SOA excluded from negative DS responses. Reported by Hauke 
Lampe.  The negative cache did not include proper SOA records for
	  negative qtype DS responses which makes BIND barf on it, such
	  responses are now only used internally.
	- Fix negative cache lookup of closestencloser check of DS type bit.



git-svn-id: file:///svn/unbound/trunk@1932 be551aaa-1e26-0410-a405-d3ace91eadb9
 2009-12-09 14:55:19 +00:00
Wouter Wijngaards c56fdce932 Fixup unsigned CNAME to signed CNAME detection of signatures. 
git-svn-id: file:///svn/unbound/trunk@1905 be551aaa-1e26-0410-a405-d3ace91eadb9
 2009-11-16 13:34:03 +00:00