Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled

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SUSE CVE-2023-2829

A named instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache RFC 8198 option synth-from-dnssec enabled can be remotely terminated using a zone with a malformed NSEC record. This issue affects BIND 9 versions 9.16.8-S1 through...

The vulnerability of the BIND DNS server arises from improper validation of assertions, which leads to incomplete cleanup. This allows attackers to perform a denial-of-service attack.

The vulnerability of the BIND DNS server relates to the possibility of exploiting certain vulnerabilities during DNS query processing. Exploiting this vulnerability allows a malicious actor to send repetitive request patterns to servers with enabled DNSSEC-Vvalidated Cache synth-from-dnssec,...

K15172: BIND vulnerability CVE-2010-3762

Security Advisory Description Description ISC BIND before 9.7.2-P2, when DNSSEC validation is enabled, does not properly handle certain bad signatures if multiple trust anchors exist for a single zone, which allows remote attackers to cause a denial of service daemon crash via a DNS query...

SUSE CVE-2009-4022

Unspecified vulnerability in ISC BIND 9.0.x through 9.3.x, 9.4 before 9.4.3-P4, 9.5 before 9.5.2-P1, 9.6 before 9.6.1-P2, and 9.7 beta before 9.7.0b3, with DNSSEC validation enabled and checking disabled CD, allows remote attackers to conduct DNS cache poisoning attacks by receiving a recursive...

SUSE CVE-2019-3807

An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation...

SUSE CVE-2020-12244

An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation...

SUSE CVE-2020-25683

A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. A remote attacker, who can create valid DNS replies, could use this flaw to cause an overflow in a heap-allocated memory...

PT-2023-8454

Name of the Vulnerable Software and Affected Versions systemd-resolved affected versions not specified Description The issue is related to insufficient authentication checks of messages from DNS clients in the systemd-resolved service, which manages network connections and domain name resolutions...

The vulnerability of the DNSSEC implementation on BIND servers allows attackers to perform a type of attack known as “denial-of-service attack”.

The vulnerability of the DNSSEC technology’s DNS BIND server is related to improper verification of the EdDSA cryptographic signature. Exploiting this vulnerability could allow a malicious actor to perform a denial-of-service attack remotely...

The vulnerability of the DNSSEC implementation in BIND servers allows attackers to perform a type of “denial-of-service attack”.

The vulnerability of the DNSSEC technology’s DNS BIND server stems from improper verification of the ECDSA cryptographic signature. Exploiting this vulnerability allows a malicious actor to perform a type of “denial-of-service” attack...

bind: memory leaks in EdDSA DNSSEC verification code

A flaw was found in the Bind package, where the DNSSEC verification code for the EdDSA algorithm leaks memory when there is a signature length mismatch. By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak, resulting in...

bind: memory leak in ECDSA DNSSEC verification code

A flaw was found in the Bind package. By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak, resulting in crashing the program...

bind: memory leak in ECDSA DNSSEC verification code

A flaw was found in the Bind package. By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak, resulting in crashing the program...

bind: memory leaks in EdDSA DNSSEC verification code

A flaw was found in the Bind package, where the DNSSEC verification code for the EdDSA algorithm leaks memory when there is a signature length mismatch. By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak, resulting in...

bind: memory leaks in EdDSA DNSSEC verification code

A flaw was found in the Bind package, where the DNSSEC verification code for the EdDSA algorithm leaks memory when there is a signature length mismatch. By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak, resulting in...

PT-2022-21781 · Unknown · Go-Resolver

Name of the Vulnerable Software and Affected Versions: go-resolver affected versions not specified Description: The issue is related to incorrect DNSSEC validation. An attacker can cause the package to report successful validation for invalid, attacker-controlled records. Specifically, root DNSSE...

Memory leak in ECDSA DNSSEC verification code

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CVE-2022-33991

dproxy-nexgen aka dproxy nexgen forwards and caches DNS queries with the CD aka checking disabled bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers...

DNSSEC: How It Works & Key Considerations

From its beginnings as a replacement for a centralized database, the Domain Name System DNS has evolved into a dynamic, highly distributed, question-answer protocol. The proverbial "phone book of the internet" has increased in complexity and scale alongside the rapid growth of the World Wide Web...