RUSTSEC-2025-0006 Hickory DNS failure to verify self-signed RRSIG for DNSKEYs

Summary The DNSSEC validation routines treat entire RRsets of DNSKEY records as trusted once they have established trust in only one of the DNSKEYs. As a result, if a zone includes a DNSKEY with a public key that matches a configured trust anchor, all keys in that zone will be trusted to...

Security update for dnsmasq

This update for dnsmasq fixes the following issues: Version update to 2.90: CVE-2023-50387: Fixed a Denial Of Service while trying to validate specially crafted DNSSEC responses. bsc1219823 CVE-2023-50868: Fixed a Denial Of Service while trying to validate specially crafted DNSSEC responses...

Important: bind

Issue Overview: Resolver caches and authoritative zone databases that hold significant numbers of RRs for the same hostname of any RTYPE can suffer from degraded performance as content is being added or updated, and also when handling client queries for this name. This issue affects BIND 9 versio...

SUSE CVE-2024-1975

If a server hosts a zone containing a "KEY" Resource Record, or a resolver DNSSEC-validates a "KEY" Resource Record from a DNSSEC-signed domain in cache, a client can exhaust resolver CPU resources by sending a stream of SIG0 signed requests. This issue affects BIND 9 versions 9.0.0 through...

RHEL 5 : bind97 (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched. - bind: An error in TSIG authentication can permit unauthorized dynamic updates CVE-2017-3143 - named in IS...

bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator

Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage, leading to a Denial of Service in the DNSSEC-validating resolver side. This vulnerability applies only for systems where DNSSEC validation is enabled...

bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources

A flaw was found in bind9. By flooding a DNSSEC resolver with responses coming from a DNSEC-signed zone using NSEC3, an attacker can lead the targeted resolver to a CPU exhaustion, further leading to a Denial of Service on the targeted host. This vulnerability applies only for systems where DNSSE...

[SECURITY] [DLA 3795-1] knot-resolver security update

Debian LTS Advisory DLA-3795-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany April 26, 2024 https://wiki.debian.org/LTS Package : knot-resolver Version : 3.2.1-3+deb10u2 CVE ID : CVE-2019-10190 CVE-2019-10191 CVE-2019-19331 CVE-2020-12667 Debian Bug : 932048...

USN-6657-2 dnsmasq vulnerabilities

USN-6657-1 fixed several vulnerabilities in Dnsmasq. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Original advisory details: Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Dnsmasq icorrectly handled validating DNSSEC...

[SECURITY] Fedora 40 Update: unbound-1.19.3-1.fc40

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources

A flaw was found in bind9. By flooding a DNSSEC resolver with responses coming from a DNSEC-signed zone using NSEC3, an attacker can lead the targeted resolver to a CPU exhaustion, further leading to a Denial of Service on the targeted host. This vulnerability applies only for systems where DNSSE...

USN-6665-1 unbound vulnerabilities

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Unbound incorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Unbound to consume resources, leading to a denial of service. CVE-2023-50387 It was discovered that...

bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator

Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage, leading to a Denial of Service in the DNSSEC-validating resolver side. This vulnerability applies only for systems where DNSSEC validation is enabled...

bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources

A flaw was found in bind9. By flooding a DNSSEC resolver with responses coming from a DNSEC-signed zone using NSEC3, an attacker can lead the targeted resolver to a CPU exhaustion, further leading to a Denial of Service on the targeted host. This vulnerability applies only for systems where DNSSE...

USN-6642-1 bind9 vulnerabilities

Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled parsing large DNS messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. CVE-2023-4408 Elias Heftrig, Haya Schulmann,...

[SECURITY] Fedora 39 Update: unbound-1.19.1-2.fc39

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

[slackware-security] dnsmasq

New dnsmasq packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/dnsmasq-2.90-i586-1slack15.0.txz: Upgraded. Add limits on the resources used to do DNSSEC validation. For more information, see:...

CVE-2023-50868

A flaw was found in bind9. By flooding a DNSSEC resolver with responses coming from a DNSEC-signed zone using NSEC3, an attacker can lead the targeted resolver to a CPU exhaustion, further leading to a Denial of Service on the targeted host. This vulnerability applies only for systems where DNSSE...

PT-2024-1751

Vulnerability Report Name of the Vulnerable Software and Affected Versions BIND versions 9.16.48-1 through 9.18.24-1 Unbound versions 1.19.1-alt1 PDNS Recursor versions 4.8.6-1 Knot Resolver versions 5.6.0-1+deb12u1 systemd affected versions not specified dnsmasq affected versions not specified...

SUSE-SU-2023:2836-1 Security update for bind

This update for bind fixes the following issues: Update to release 9.16.42 Security Fixes: The overmem cleaning process has been improved, to prevent the cache from significantly exceeding the configured max-cache-size limit. CVE-2023-2828 A query that prioritizes stale data over lookup triggers ...