Resource Exhaustion Affecting dhclient package, versions <12:4.2.5-83.el7_9.2


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.09% (40th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Resource Exhaustion vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CENTOS7-DHCLIENT-7276658
  • published19 Jun 2024
  • disclosed13 Feb 2024

Introduced: 13 Feb 2024

CVE-2023-4408  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Centos:7 dhclient to version 12:4.2.5-83.el7_9.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dhclient package and not the dhclient package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The DNS message parsing code in named includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected named instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

CVSS Scores

version 3.1