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OpenAdvisories
Medium RHSA-2025:8197 1 CVE

Red Hat Security Advisory: unbound security update

Published May 28, 2025 · Updated Sep 26, 2026

Ecosystem: Red Hat

Fixed packages 13

ReleasePackageFixed in
Red Hat · RHEL 9 enterprise_linux:9::appstream python3-unbound 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::appstream python3-unbound-debuginfo 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::appstream unbound 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::appstream unbound-debuginfo 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::appstream unbound-debugsource 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::appstream unbound-dracut 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::appstream unbound-libs 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::appstream unbound-libs-debuginfo 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::crb python3-unbound-debuginfo 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::crb unbound-debuginfo 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::crb unbound-debugsource 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::crb unbound-devel 0:1.16.2-18.el9_6
Red Hat · RHEL 9 enterprise_linux:9::crb unbound-libs-debuginfo 0:1.16.2-18.el9_6

Vulnerabilities 1

  • Medium 5.3
    CVE-2024-8508

    Unbounded name compression could lead to Denial of Service

    NLnet Labs Unbound up to and including version 1.21.0 contains a vulnerability when handling replies with very large RRsets that it needs to perform name compression for. Malicious upstreams responses with very large RRsets can cause Unbound to spend a consid…

    NLnet Labs Unbound unbound unbound Debian Ubuntu Azure Linux Alpine

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2316321
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_8197.json
  • report
    https://access.redhat.com/security/cve/CVE-2024-8508
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2024-8508
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2024-8508
  • article
    https://www.nlnetlabs.nl/downloads/unbound/CVE-2024-8508.txt