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ALPINE-CVE-2026-3591

ALPINE-CVE-2026-3591

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.

CVSS 5.4 · Medium · Fix available

Published
Updated

Stack: system

Affected products and versions

  • bind Alpine:v3.22

    Affected ranges
    • ECOSYSTEM: ≥ 9.20.0, < 9.20.21-r0

    Update to 9.20.21-r0

  • bind Alpine:v3.23

    Affected ranges
    • ECOSYSTEM: ≥ 9.20.0, < 9.20.21-r0

    Update to 9.20.21-r0

  • bind Alpine:v3.24

    Affected ranges
    • ECOSYSTEM: ≥ 9.20.0, < 9.20.21-r0

    Update to 9.20.21-r0

Original sources

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