ISC BIND 9 NSEC3-Signed Zone Handling DoS

According to its self-reported version number, the remote installation of BIND is affected by a denial of service vulnerability. This issue exists due to the handling of queries for NSEC3-signed zones related to the memcpy function in the 'name.c' file on authoritative nameservers. Note that Ness...

ISC bind DoS

Crash on parsing malformed request to NSEC3-signed zone...

FreeBSD-SA-14:04.bind

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-14:04.bind Security Advisory The FreeBSD Project Topic: BIND remote denial of service vulnerability Category: contrib Module: bind Announced: 2014-01-14 Credits...

USN-2081-1: Bind vulnerability

Jared Mauch discovered that Bind incorrectly handled certain queries for NSEC3-signed zones. A remote attacker could use this flaw with a specially crafted query to cause Bind to stop responding, resulting in a denial of service...

bind -- denial of service vulnerability

ISC reports: Because of a defect in handling queries for NSEC3-signed zones, BIND can crash with an "INSIST" failure in name.c when processing queries possessing certain properties. By exploiting this defect an attacker deliberately constructing a query with the right properties could achieve...

AIX 6.1 TL 6 : bind9 (IV11743)

An as-yet unidentified network event caused BIND 9 resolvers to cache an invalid record, subsequent queries for which could crash the resolvers with an assertion failure. Furthermore, AIX BIND 9.4.1 is affected by the following three security vulnerabilities: CVE-2010-0382 - ISC BIND...

Scientific Linux Security Update : bind on SL5.x i386/x86_64

CVE-2010-0097 BIND DNSSEC NSEC/NSEC3 validation code could cause bogus NXDOMAIN responses CVE-2010-0290 BIND upstream fix for CVE-2009-4022 is incomplete A flaw was found in the BIND DNSSEC NSEC/NSEC3 validation code. If BIND was running as a DNSSEC-validating resolver, it could incorrectly cache...

dns-nsec3-enum NSE Script

Tries to enumerate domain names from the DNS server that supports DNSSEC NSEC3 records. The script queries for nonexistant domains until it exhausts all domain ranges keeping track of hashes. At the end, all hashes are printed along with salt and number of iterations used. This technique is known...

Unbound < 1.4.14 / 1.4.13p2 Multiple DoS

According to its self-reported version number, the remote Unbound DNS resolver is affected by multiple denial of service vulnerabilities : - A denial of service vulnerability exists due to an attempt to free unallocated memory during the processing of duplicate CNAME records in a signed zone. An...

DSA-2370-1 unbound - several

Bulletin has no description...

CVE-2011-4869

validator/valnsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service daemon crash via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528...

CVE-2011-4869

validator/valnsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service daemon crash via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528...

Design/Logic Flaw

validator/valnsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service daemon crash via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528...

CVE-2011-4869

validator/valnsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service daemon crash via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528...

CVE-2011-4869

CVE-2011-4528 and CVE-2011-4869 in Unbound describe remote-denial-of-service via crafted responses or memory handling issues in the 1.4.x series. CVE-2011-4528: during processing of duplicate CNAMEs in a signed zone, Unbound may free unallocated memory, potentially crashing the daemon. CVE-2011-4...

unbound -- denial of service vulnerabilities from nonstandard redirection and denial of existence

Unbound developer reports: Unbound crashes when confronted with a non-standard response from a server for a domain. This domain produces duplicate RRs from a certain type and is DNSSEC signed. Unbound also crashes when confronted with a query that eventually, and under specific circumstances,...

Unbound multiple denial-of-service vulnerabilities

Overview A specially crafted DNS query containing signed duplicate resource records or a malformed NSEC3 signed resource record may cause Unbound to crash. Description NLnetLabs advisory states:== Description 1: crash on signed duplicate Resource Records There are authoritative servers that...

OpenDNSSEC 1.3.0rc2 new Version released !

OpenDNSSEC 1.3.0rc2 new Version released ! Version 1.3.0rc2 of OpenDNSSEC Match the names of the signer pidfile and enforcer pidfile. Include check for resign resalt in ods-kaspcheck. Bugfixes: Bugfix 231: Fix MySQL version check. ods-ksmutil: Update now sends a HUP to the enforcerd. Signer Engin...

dns-nsec-enum NSE Script

Enumerates DNS names using the DNSSEC NSEC-walking technique. Output is arranged by domain. Within a domain, subzones are shown with increased indentation. The NSEC response record in DNSSEC is used to give negative answers to queries, but it has the side effect of allowing enumeration of all...

Debian DSA-2054-1 : bind9 - DNS cache poisoning

Several cache-poisoning vulnerabilities have been discovered in BIND. These vulnerabilities apply only if DNSSEC validation is enabled and trust anchors have been installed, which is not the default. The Common Vulnerabilities and Exposures project identifies the following problems : -...