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Arbitrary Command Injection Affecting dhcp-libs package, versions <12:4.2.5-58.el7_4.4

Severity

 Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
96.76% (100th percentile)

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  • Snyk IDSNYK-RHEL7-DHCPLIBS-5190513
  • published26 Jul 2021
  • disclosed15 May 2018
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Introduced: 15 May 2018

CVE-2018-1111  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade RHEL:7 dhcp-libs to version 12:4.2.5-58.el7_4.4 or higher.
This issue was patched in RHSA-2018:1455.

NVD Description

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

DHCP packages in Red Hat Enterprise Linux 6 and 7, Fedora 28, and earlier are vulnerable to a command injection flaw in the NetworkManager integration script included in the DHCP client. A malicious DHCP server, or an attacker on the local network able to spoof DHCP responses, could use this flaw to execute arbitrary commands with root privileges on systems using NetworkManager and configured to obtain network configuration using the DHCP protocol.

References