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CVE-2020-37127

CVE-2020-37127 · dnsmasq-utils 2.79-1 - 'dhcp_release' Denial of Service

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

Dnsmasq-utils 2.79-1 contains a buffer overflow vulnerability in the dhcp_release utility that allows attackers to cause a denial of service by supplying excessive input. Attackers can trigger a core dump and terminate the dhcp_release process by sending a crafted input string longer than 16 characters.

CVSS 6.9 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • dnsmasq-utils

    Versions
    • 2.79: Affected

    No fix published

  • dnsmasq Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.80-1

    Update to 2.80-1

  • dnsmasq Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.80-1

    Update to 2.80-1

  • dnsmasq Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.80-1

    Update to 2.80-1

  • dnsmasq Ubuntu:Pro:14.04:LTS

    Versions
    • 2.66-4ubuntu1
    • 2.67-1
    • 2.68-1
    • 2.68-1ubuntu0.1
    • 2.68-1ubuntu0.2
    • 2.68-1ubuntu0.2+esm1
    • 2.68-1ubuntu0.2+esm2
    • 2.68-1ubuntu0.2+esm3
    • 2.68-1ubuntu0.2+esm5
    Affected ranges
    • ECOSYSTEM: < 2.68-1ubuntu0.2+esm6

    Update to 2.68-1ubuntu0.2+esm6

  • dnsmasq Ubuntu:Pro:18.04:LTS

    Versions
    • 2.78-1
    • 2.78-3
    • 2.79-1
    • 2.79-1ubuntu0.2
    • 2.79-1ubuntu0.3
    • 2.79-1ubuntu0.4
    • 2.79-1ubuntu0.5
    • 2.79-1ubuntu0.6
    • 2.79-1ubuntu0.7
    Affected ranges
    • ECOSYSTEM: < 2.90-0ubuntu0.18.04.1+esm1

    Update to 2.90-0ubuntu0.18.04.1+esm1

  • dnsmasq Ubuntu:22.04:LTS

    Versions
    • 2.85-1ubuntu2
    • 2.86-1.1
    • 2.86-1.1ubuntu0.1
    • 2.86-1.1ubuntu0.2
    • 2.86-1.1ubuntu0.3
    • 2.86-1.1ubuntu0.4
    • 2.86-1.1ubuntu0.5
    Affected ranges
    • ECOSYSTEM: < 2.90-0ubuntu0.22.04.1

    Update to 2.90-0ubuntu0.22.04.1

Original sources

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