SB2026040359 - Fedora 42 update for pdns-recursor

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Main Vulnerability Database SB2026040359

SB2026040359 - Fedora 42 update for pdns-recursor

Published: April 3, 2026

Security Bulletin ID SB2026040359
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Acceptance of Extraneous Untrusted Data With Trusted Data (CVE-ID: CVE-2025-30192)

The vulnerability allows a remote attacker to perform cache poisoning attacks.

The vulnerability exists due to an error in ECS implementation. A remote attacker can spoof answers to ECS enabled requests sent out by the Recursor.


2) Input validation error (CVE-ID: CVE-2025-59030)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of incoming notifies over TCP. A remote attacker can send specially crafted requests to the DNS server and perform a denial of service (DoS) attack.


3) Resource management error (CVE-ID: CVE-2025-59029)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources in cache management when handling DNS queries with with qtype ANY. A remote attacker can send specially crafted request to the DNS server and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References