high
7.5
CWE
405
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2024-11187: Many records in the additional section cause CPU exhaustion

First published: Wed Jan 29 2025(Updated: )

It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to use disproportionate resources processing the queries. Zones will usually need to have been deliberately crafted to attack this exposure.

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<=1:9.20.4-4
1:9.18.33-1~deb12u2
1:9.20.5-1
F5 BIG-IP and BIG-IQ Centralized Management=17.5.0>=17.1.0<=17.1.2
F5 BIG-IP and BIG-IQ Centralized Management>=16.1.0<=16.1.5
F5 BIG-IP and BIG-IQ Centralized Management>=15.1.0<=15.1.10

Remedy

Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.33, 9.20.5, 9.21.4, or 9.18.33-S1.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2024-11187?

    CVE-2024-11187 has been classified with a high severity rating due to potential denial of service impacts.

  • How do I fix CVE-2024-11187?

    To resolve CVE-2024-11187, upgrade to secure versions 1:9.18.33-1~deb12u2 or 1:9.20.5-1 of the bind9 package.

  • What software is affected by CVE-2024-11187?

    CVE-2024-11187 affects the bind9 package versions up to 1:9.16.50-1~deb11u2, 1:9.18.28-1~deb12u2, and 1:9.20.4-4.

  • Can CVE-2024-11187 be exploited remotely?

    Yes, CVE-2024-11187 can potentially be exploited remotely by attackers sending specially crafted queries.

  • What are the consequences of CVE-2024-11187 exploitation?

    Exploitation of CVE-2024-11187 may result in excessive resource consumption leading to service disruptions.

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