SB20260409104 - SUSE update for bind

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Main Vulnerability Database SB20260409104

SB20260409104 - SUSE update for bind

Published: April 9, 2026

Security Bulletin ID SB20260409104
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
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 1 vulnerability.


1) Resource exhaustion (CVE-ID: CVE-2026-1519)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in the DNSSEC validation component when handling NSEC3 records during insecure delegation validation. A remote attacker can send a specially crafted DNS zone response to cause excessive CPU load on the resolver.

Resolvers performing DNSSEC validation are affected; authoritative-only servers are generally not affected unless they perform recursive queries.


Remediation

Install update from vendor's website.

References