high
7.5
CWE
617
Advisory Published
CVE Published
Updated

CVE-2024-4076: Assertion failure when serving both stale cache data and authoritative zone content

First published: Fri Jul 19 2024(Updated: )

Client queries that trigger serving stale data and that also require lookups in local authoritative zone data may result in an assertion failure. This issue affects BIND 9 versions 9.16.13 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.11.33-S1 through 9.11.37-S1, 9.16.13-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.27-S1.

Credit: security-officer@isc.org security-officer@isc.org

Affected SoftwareAffected VersionHow to fix
debian/bind9
1:9.16.50-1~deb11u2
1:9.16.50-1~deb11u1
1:9.18.28-1~deb12u2
1:9.20.4-3
1:9.20.4-4

Remedy

Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.28, 9.20.0, or 9.18.28-S1.

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2024-4076?

    CVE-2024-4076 is considered a high severity vulnerability due to the potential for assertion failure leading to service disruption.

  • How do I fix CVE-2024-4076?

    To fix CVE-2024-4076, upgrade to BIND 9 versions 9.16.51, 9.18.28, 9.19.25, or later.

  • Which BIND 9 versions are affected by CVE-2024-4076?

    CVE-2024-4076 affects BIND 9 versions 9.16.13 through 9.16.50, 9.18.0 through 9.18.27, and 9.19.0 through 9.19.24.

  • Is my system vulnerable to CVE-2024-4076?

    If you are running BIND 9 versions within the specified ranges, your system is vulnerable to CVE-2024-4076.

  • What impact does CVE-2024-4076 have on services?

    CVE-2024-4076 may lead to assertion failures that can disrupt DNS services, potentially affecting network resolution.

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