Why the Right Tool — and the Right Team — Are Essential for DNS Security

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AlmaLinux 9 : aardvark-dns (ALSA-2025:7094)

The remote AlmaLinux 9 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2025:7094 advisory. containers/aardvark-dns: TCP Query Handling Flaw in Aardvark-dns Leading to Denial of Service CVE-2024-8418 Tenable has extracted the preceding description block...

Quantum-Resistant Domain Name System: a Comprehensive System-Level Study

The Domain Name System DNS plays a foundational role in Internet infrastructure, yet its core protocols remain vulnerable to compromise by quantum adversaries. As cryptographically relevant quantum computers become a realistic threat, ensuring DNS confidentiality, authenticity, and integrity in t...

Secure Your Enterprise with Robust DNS: A Guide to NIST SP 800-81r3

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Why DNS Security Is Your First Defense Against Cyber Attacks?

In today's cybersecurity landscape, much of the focus is placed on firewalls, antivirus software, and endpoint detection. While these tools are essential, one critical layer often goes overlooked: the Domain Name System DNS. As the starting point of nearly every online interaction, DNS is not onl...

[SECURITY] Fedora 42 Update: dnsdist-1.9.10-1.fc42

dnsdist is a highly DNS-, DoS- and abuse-aware loadbalancer. Its goal in life is to route traffic to the best server, delivering top performance to legitimate users while shunting or blocking abusive traffic...

CVE-2023-2754

The Cloudflare WARP client for Windows assigns loopback IPv4 addresses for the DNS Servers, since WARP acts as local DNS server that performs DNS queries in a secure manner, however, if a user is connected to WARP over an IPv6-capable network, te WARP client did not assign loopback IPv6 addresses...

python-dns security update

An update is available for python-dns. 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 The python-dns package contains the dnslib module that implements a DNS...

RLSA-2024:9423 Moderate: python-dns security update

The python-dns package contains the dnslib module that implements a DNS client and additional modules that define certain symbolic constants used by DNS, such as dnstype, dnsclass and dnsopcode. Security Fixes: dnspython: denial of service in stub resolver CVE-2023-29483 For more details about th...

DNSSEC NSEC. The accidental treasure map to your subdomains

TL;DR: DNSSEC secures DNS but may unintentionally expose domain structures via NSEC/NSEC3 records, enabling zone walking to enumerate subdomains. NSEC openly lists domain names, making enumeration easy. NSEC3 hashes names, making enumeration harder, but attackers can still crack weak...

UBUNTU-CVE-2025-25188

Hickory DNS is a Rust based DNS client, server, and resolver. A vulnerability present starting in version 0.8.0 and prior to versions 0.24.3 and 0.25.0-alpha.5 impacts Hickory DNS users relying on DNSSEC verification in the client library, stub resolver, or recursive resolver. The DNSSEC validati...

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...

CVE-2024-3393

A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall. Repeated attempts to trigger this condition will cause the firewall t...

CVE-2024-3393

A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall. Repeated attempts to trigger this condition will cause the firewall t...

CVE-2024-3393

CVE-2024-3393 affects Palo Alto Networks PAN-OS DNS Security: a vulnerability in parsing/logging malicious DNS packets allows an unauthenticated attacker to reboot the firewall via a crafted packet, with repeated attempts forcing maintenance mode. Connected sources indicate active exploitation an...

Palo Alto Releases Patch for PAN-OS DoS Flaw — Update Immediately

Palo Alto Networks has disclosed a high-severity vulnerability impacting PAN-OS software that could cause a denial-of-service DoS condition on susceptible devices. The flaw, tracked as CVE-2024-3393 CVSS score: 8.7, impacts PAN-OS versions 10.X and 11.X, as well as Prisma Access running PAN-OS...

PAN-OS: Firewall Denial of Service (DoS) in DNS Security Using a Specially Crafted Packet

A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall. Repeated attempts to trigger this condition will cause the firewall t...

CVE-2024-3393

A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall. Repeated attempts to trigger this condition will cause the firewall t...

PT-2024-9866

Name of the Vulnerable Software and Affected Versions: Palo Alto Networks PAN-OS versions 10.X and 11.X, including Prisma Access. Description: A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious...

Palo Alto Networks PAN-OS 安全漏洞

Palo Alto Networks PAN-OS is an operating system developed by Palo Alto Networks, Inc. for its firewall appliances. A security vulnerability exists in Palo Alto Networks PAN-OS, which arises from a denial of service vulnerability in the DNS Security feature that allows an unauthenticated attacker...