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Details of issue NIXPKGS-2026-1245

NIXPKGS-2026-1245
published on
Permalink CVE-2026-33602
6.5 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): HIGH
  • Privileges required (PR): NONE
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): LOW
  • Availability impact (A): HIGH
updated 6 days, 11 hours ago by @LeSuisse Activity log
  • Created suggestion 6 days, 17 hours ago
  • @LeSuisse accepted 6 days, 11 hours ago
  • @LeSuisse published on GitHub 6 days, 11 hours ago
Off-by-one access when processing crafted UDP responses

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service.

Affected products

dnsdist
  • <1.9.13
  • <2.0.4

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