CVE-2017-15107

A vulnerability was found in Dnsmasq's implementation of DNSSEC. Wildcard synthesized NSEC records could be improperly interpreted to prove the non-existence of hostnames that actually exist...

FreeBSD : unbound -- vulnerability in the processing of wildcard synthesized NSEC records (8d3bae09-fd28-11e7-95f2-005056925db4)

Unbound reports : We discovered a vulnerability in the processing of wildcard synthesized NSEC records. While synthesis of NSEC records is allowed by RFC4592, these synthesized owner names should not be used in the NSEC processing. This does, however, happen in Unbound 1.6.7 and earlier versions....

powerdns-recursor -- insufficient validation of DNSSEC signatures

PowerDNS Security Advisory reports: An issue has been found in the DNSSEC validation component of PowerDNS Recursor, allowing an ancestor delegation NSEC or NSEC3 record to be used to wrongfully prove the non-existence of a RR below the owner name of that record. This would allow an attacker in...

CVE-2017-15105

A flaw was found in the way unbound validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence NXDOMAIN answer of an existing wildcard record, or trick unbound into accepting a NODATA proof...

Systemd resolved dns_packet_read_type_window Infinite Loop (CVE-2017-15908)

A denial-of-service vulnerability exists in the dnspacketreadtypewindow function of systemdresolved component in the systemd project. This vulnerability is due to the incorrectly parsing of NSEC records in a DNS response. A malicious DNS server could exploit this vulnerability by sending a crafte...

systemd Network Name Resolution Manager NSEC Resource Record Pseudo-Types Denial of Service Vulnerability

This vulnerability allows remote attackers to cause a denial of service condition on vulnerable installations of systemd Network Name Resolution Manager. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NSEC resource records in...

Design/Logic Flaw

In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dnspacketreadtypewindow function of the 'systemd-resolved' service and cause a DoS of the affected service...

CVE-2017-15908

CVE-2017-15908 affects systemd 223–235 where a remote DNS server can reply with a crafted DNS NSEC RR to trigger an infinite loop in dns_packet_read_type_window() of systemd-resolved, causing DoS. Public advisories (Ubuntu USN-3558-1) reference CVE-2017-15908; related OpenVAS/Nessus entries docum...

CVE-2017-15908

In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dnspacketreadtypewindow function of the 'systemd-resolved' service and cause a DoS of the affected service...

CVE-2017-15908

In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dnspacketreadtypewindow function of the 'systemd-resolved' service and cause a DoS of the affected service...

UBUNTU-CVE-2017-15908

In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dnspacketreadtypewindow function of the 'systemd-resolved' service and cause a DoS of the affected service...

unbound -- vulnerability in the processing of wildcard synthesized NSEC records

Unbound reports: We discovered a vulnerability in the processing of wildcard synthesized NSEC records. While synthesis of NSEC records is allowed by RFC4592, these synthesized owner names should not be used in the NSEC processing. This does, however, happen in Unbound 1.6.7 and earlier versions...

Weblate: DNSSEC Zone Walk using NSEC Records

Due to a design flaw in the NSEC records used by DNSSEC it is possible to discover all subdomains of a particular domain for which NSEC records are available. NSEC records are used by the weblate.org domain which means anyone can retreive all subdomains of weblate.org. These subdomains can contai...

Skyliner: DNSSEC misconfiguration

First of all I will start with some theory. DNS is a system to translate a domain name to an ip address. Normally a computer automatically trust a DNS server and connects to the IP provided by the DNS server. This is prone to security issues because a malicious wifi network, an attacker on your...

Oracle Linux 5 : bind (ELSA-2010-0062)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0062 advisory. - NSEC validation code could cause wrong NXDOMAIN responses 554851, CVE-2010-0097 Tenable has extracted the preceding description block directly from t...

AIX 5.3 TL 12 : bind9 (IV09491)

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...

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...

DNSSEC NSEC Records

The remote DNSSEC server uses NSEC records for negative answers to queries for its zones. NSEC records link to additional existing domains. These existing domains can be used to craft further queries that will lead to further NSEC records and thus further domains. This process can be repeated unt...

tls-nextprotoneg NSE Script

Enumerates a TLS server's supported protocols by using the next protocol negotiation extension. This works by adding the next protocol negotiation extension in the client hello packet and parsing the returned server hello's NPN extension data. For more information, see: Script Arguments...