CVE-2017-13704

dnsmasq: Size parameter overflow via large DNS query

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.0

Review impact separately from score.

Published · August 21, 2017

Updated · May 13, 2026

Description

An integer underflow flaw leading to a buffer over-read was found in dnsmasq in the DNS code. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-190 · Integer Overflow or Wraparound