Integer Underflow Affecting dnsmasq package, versions [,2.78)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Mature
EPSS
21.49% (97th percentile)

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  • Snyk IDSNYK-UNMANAGED-DNSMASQ-2335696
  • published12 Jan 2022
  • disclosed3 Oct 2017
  • creditUnknown

Introduced: 3 Oct 2017

CVE-2017-14496  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade dnsmasq to version 2.78 or higher.

Overview

Affected versions of this package are vulnerable to Integer Underflow. Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request.

CVSS Scores

version 3.1