CVE-2020-37127

MEDIUM

5.5

Description

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.

CVE Details

CVSS v3.1 Score5.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published2/5/2026

Last Modified2/5/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-121

References

https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/48301(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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