Bug 2437103 (CVE-2020-37127)

Summary: CVE-2020-37127 dnsmasq: dnsmasq-utils 'dhcp_release' Denial of Service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: eglynn, jjoyce, jschluet, lhh, mburns, mgarciac, pemensik
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
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.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2437151, 2437153, 2437154, 2437156, 2437152, 2437155    
Bug Blocks:    

Description OSIDB Bzimport 2026-02-05 17:02:39 UTC
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.