ISC DHCP server 4.2 before 4.2.0-P2, when configured to use failover partnerships, allows remote attackers to cause a denial of service (communications-interrupted state and DHCP client service loss) by connecting to a port that is only intended for a failover peer, as demonstrated by a Nagios check_tcp process check to TCP port 520.

The Rocky Linux 8.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0032 advisory.

    This advisory aggregates security fixes for the dhcp SRPM in CIQ LTS 8.6. It addresses 25 CVEs:
    CVE-2018-5732, CVE-2011-0413, CVE-2022-2929, CVE-2018-1111, CVE-2010-2156, and 20 more.

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

A vulnerability has been found and corrected in dhcp :

ISC DHCP server 4.2 before 4.2.0-P2, when configured to use failover partnerships, allows remote attackers to cause a denial of service (communications-interrupted state and DHCP client service loss) by connecting to a port that is only intended for a failover peer, as demonstrated by a Nagios check_tcp process check to TCP port 520 (CVE-2010-3616).

The updated packages have been patched to correct this issue.

This is a SECURITY release of ISC DHCP 4.2, and fixes one security related bug.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Type	Severity
357706	Rocky Linux 8.6 [CIQ] Security Update: dhcp-client / dhcp-client-debuginfo / dhcp-common / dhcp-devel / etc Multiple Vulnerabilities (ciqsa-2026_0032)	Nessus	Rocky Linux Local Security Checks	Local	high
51794	Mandriva Linux Security Advisory : dhcp (MDVSA-2011:001)	Nessus	Mandriva Local Security Checks	Local	medium
51348	Fedora 14 : dhcp-4.2.0-16.P2.fc14 (2010-18856)	Nessus	Fedora Local Security Checks	Local	medium

Detections

Analytics

CVE-2010-3616

high

Tenable Plugins

high

medium

medium