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CVE-2024-43167

CVE-2024-43167 · Unbound: null pointer dereference in unbound

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

DISPUTE NOTE: this issue does not pose a security risk as it (according to analysis by the original software developer, NLnet Labs) falls within the expected functionality and security controls of the application. Red Hat has made a claim that there is a security risk within Red Hat products. NLnet Labs has no further information about the claim, and suggests that affected Red Hat customers refer to available Red Hat documentation or support channels. ORIGINAL DESCRIPTION: A NULL pointer dereference flaw was found in the ub_ctx_set_fwd function in Unbound. This issue could allow an attacker who can invoke specific sequences of API calls to cause a segmentation fault. When certain API functions such as ub_ctx_set_fwd and ub_ctx_resolvconf are called in a particular order, the program attempts to read from a NULL pointer, leading to a crash. This issue can result in a denial of service by causing the application to terminate unexpectedly.

CVSS 2.8 · Low · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • red hat enterprise linux 6

    No fix published

  • red hat enterprise linux 7

    No fix published

  • red hat enterprise linux 8

    No fix published

  • red hat enterprise linux 9

    No fix published

  • red hat openshift container platform 4

    No fix published

  • red hat openstack platform 16.2

    No fix published

  • red hat openstack platform 17.1

    No fix published

  • red hat openstack platform 18.0

    No fix published

  • unbound Debian:12

    Versions
    • 1.17.1-2
    • 1.17.1-2+deb12u1
    • 1.17.1-2+deb12u2
    Affected ranges
    • ECOSYSTEM: < 1.17.1-2+deb12u3

    Update to 1.17.1-2+deb12u3

  • unbound Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.21.1-1

    Update to 1.21.1-1

  • unbound Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.21.1-1

    Update to 1.21.1-1

  • unbound Ubuntu:Pro:14.04:LTS

    Versions
    • 1.4.20-1
    • 1.4.21-1
    • 1.4.21-1ubuntu1
    • 1.4.21-1ubuntu2
    • 1.4.22-1ubuntu1
    • 1.4.22-1ubuntu2
    • 1.4.22-1ubuntu3
    • 1.4.22-1ubuntu4
    • 1.4.22-1ubuntu4.14.04.1
    • 1.4.22-1ubuntu4.14.04.2
    • 1.4.22-1ubuntu4.14.04.3
    Affected ranges
    • ECOSYSTEM: < 1.4.22-1ubuntu4.14.04.3+esm1

    Update to 1.4.22-1ubuntu4.14.04.3+esm1

  • unbound Ubuntu:Pro:16.04:LTS

    Versions
    • 1.4.22-1ubuntu6
    • 1.5.7-1ubuntu1
    • 1.5.7-1ubuntu2
    • 1.5.8-1ubuntu1
    • 1.5.8-1ubuntu1.1
    Affected ranges
    • ECOSYSTEM: < 1.5.8-1ubuntu1.1+esm1

    Update to 1.5.8-1ubuntu1.1+esm1

  • unbound Ubuntu:Pro:18.04:LTS

    Versions
    • 1.6.5-1
    • 1.6.7-1
    • 1.6.7-1build1
    • 1.6.7-1ubuntu1
    • 1.6.7-1ubuntu2
    • 1.6.7-1ubuntu2.1
    • 1.6.7-1ubuntu2.2
    • 1.6.7-1ubuntu2.3
    • 1.6.7-1ubuntu2.4
    • 1.6.7-1ubuntu2.5
    • 1.6.7-1ubuntu2.6
    Affected ranges
    • ECOSYSTEM: < 1.6.7-1ubuntu2.6+esm2

    Update to 1.6.7-1ubuntu2.6+esm2

  • unbound Ubuntu:20.04:LTS

    Versions
    • 1.9.0-2ubuntu1
    • 1.9.0-2ubuntu2
    • 1.9.4-2
    • 1.9.4-2ubuntu1
    • 1.9.4-2ubuntu1.1
    • 1.9.4-2ubuntu1.2
    • 1.9.4-2ubuntu1.3
    • 1.9.4-2ubuntu1.4
    • 1.9.4-2ubuntu1.5
    • 1.9.4-2ubuntu1.6
    Affected ranges
    • ECOSYSTEM: < 1.9.4-2ubuntu1.8

    Update to 1.9.4-2ubuntu1.8

  • unbound Ubuntu:22.04:LTS

    Versions
    • 1.13.1-1ubuntu1
    • 1.13.1-1ubuntu3
    • 1.13.1-1ubuntu5
    • 1.13.1-1ubuntu5.1
    • 1.13.1-1ubuntu5.2
    • 1.13.1-1ubuntu5.3
    • 1.13.1-1ubuntu5.4
    • 1.13.1-1ubuntu5.5
    Affected ranges
    • ECOSYSTEM: < 1.13.1-1ubuntu5.7

    Update to 1.13.1-1ubuntu5.7

  • unbound Ubuntu:24.04:LTS

    Versions
    • 1.17.1-2
    • 1.18.0-2ubuntu1
    • 1.18.0-2ubuntu2
    • 1.19.1-1ubuntu1
    • 1.19.2-1ubuntu1
    • 1.19.2-1ubuntu3
    • 1.19.2-1ubuntu3.1
    Affected ranges
    • ECOSYSTEM: < 1.19.2-1ubuntu3.2

    Update to 1.19.2-1ubuntu3.2

Original sources

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