dnsdiag

DNS Measurement, Troubleshooting and Security Auditing Toolset Have you ever wondered if your ISP is intercepting your DNS traffic? Have you noticed any unusual behavior in your DNS responses, or been redirected to the wrong address and suspected something might be off with your DNS? We offer a...

EVIL-CVE-2021-23017-Update-2025

vulnerability in NGINX servers versions 0.6.18–1.20.0. The scripts aim to cause a Denial of Service DoS by sending malicious DNS responses, with enhancements to bypass firewalls. This is an improved version of the original PoC from M507/CVE-2021-23017-PoC . Warning : Use only with explicit writte...

Important: Red Hat Security Advisory: ruby security update

An update for ruby is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses

A flaw was found in the resolv gem. An attacker controlling DNS responses e.g., a spoofed response or a malicious upstream DNS server can exploit this by sending crafted DNS responses containing many distinct unknown DNS resource record pairs or SvcParamKeys. This leads to uncontrolled memory...

dnscrypt-autoinstall

dnscrypt-autoinstall This project has been archived, see last comment in 108. A script for installing and automatically configuring DNSCrypt on Linux-based systems. Description DNSCrypt is a protocol for securing communications between a client and a DNS resolver by encrypting DNS queries and...

RHEL 10 : ruby (RHSA-2026:72785)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:72785 advisory. Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management...

Rocky Linux 9 [CIQ] Security Update: ruby / ruby-bundled-gems / ruby-bundled-gems-debuginfo / etc (crlsa-2026_72484)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202672484 advisory. resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Tenable has extracted the preceding description bloc...

Rocky Linux 9 [CIQ] Security Update: ruby / ruby-bundled-gems / ruby-bundled-gems-debuginfo / etc (crlsa-2026_72485)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202672485 advisory. resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Tenable has extracted the preceding description bloc...

Rocky Linux 8 [CIQ] Security Update: ruby / ruby-bundled-gems / ruby-bundled-gems-debuginfo / etc (crlsa-2026_72285)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202672285 advisory. resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Tenable has extracted the preceding description bloc...

Rocky Linux 9 [CIQ] Security Update: ruby / ruby-debuginfo / ruby-debugsource / ruby-default-gems / etc (crlsa-2026_72286)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202672286 advisory. resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Bug Fixes and Enhancements: ruby %check fails in...

CentOS Linux 7 [TuxCare] Security Update: ruby / ruby-devel / ruby-doc / ruby-irb / ruby-libs / ruby-tcltk / etc (CENTOS7:CLSA-2026:1789389792)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1789389792 advisory. - An issue was discovered in the resolv gem before 0.7.2 for Ruby. Resolv::DNS::Resource.getclass, Resolv::DNS::Resource::Generic.create, and...

Rocky Linux 10.2 [CIQ] Security Update: ruby4.0 / ruby4.0-debuginfo / ruby4.0-debugsource / ruby4.0-devel / etc (crlsa-2026_72427)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202672427 advisory. resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Tenable has extracted the preceding description...

RHEL 9 : ruby:4.0 (RHSA-2026:72484)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:72484 advisory. Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management task...

RLSA-2026:72427 Important: ruby4.0 security update

Ruby is the interpreted scripting language for quick and easy object-oriented programming. It has many features to process text files and to do system management tasks as in Perl. It is simple, straight-forward, and extensible. Security Fixes: resolv: resolv gem: Denial of Service via uncontrolle...

ruby4.0 security update

An update is available for ruby4.0. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Ruby is the interpreted scripting language for quick and easy object-oriente...

ruby security, bug fix, and enhancement update

An update is available for ruby. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Ruby is an extensible, interpreted, object-oriented, scripting language. It has...

RLSA-2026:72286 Important: ruby security, bug fix, and enhancement update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Bug Fixes and...

RHEL 10 : ruby4.0 (RHSA-2026:72427)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:72427 advisory. Ruby is the interpreted scripting language for quick and easy object-oriented programming. It has many features to process text files and to do...

RockyLinux 8 : ruby:3.3 (RLSA-2026:72285)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:72285 advisory. resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Tenable has extracted the preceding description...

RockyLinux 9 : ruby:3.3 (RLSA-2026:72485)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:72485 advisory. resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Tenable has extracted the preceding description...