RLSA-2026:97486

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Source
https://errata.rockylinux.org/RLSA-2026:97486
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:97486
Upstream
  • CVE-2026-18103
Published
2026-11-13T06:05:14Z
Modified
2026-11-13T06:30:05Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Low: dhcp security, bug fix, and enhancement update
Details

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network.

Security Fix(es):

  • dhcp-server: dhcp-server: Persistent denial of service due to buffer overflow via OMAPI (CVE-2026-18103)

Bug Fix(es) and Enhancement(s):

  • dhcpd dies constantly with "Error allocating fallback interface: invalid argument" (JIRA:Rocky Linux-151420)

  • Attempt to free pointer that is inside a structure in get_hw_addr2 (JIRA:Rocky Linux-235872)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 9 Release Notes linked from the References section.

Database specific 
{
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:97486"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:9
dhcp-client

Package

Name
dhcp-client
Purl
pkg:rpm/rocky-linux/dhcp-client?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-client-debuginfo

Package

Name
dhcp-client-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-client-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-debuginfo

Package

Name
dhcp-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-debugsource

Package

Name
dhcp-debugsource
Purl
pkg:rpm/rocky-linux/dhcp-debugsource?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-relay

Package

Name
dhcp-relay
Purl
pkg:rpm/rocky-linux/dhcp-relay?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-relay-debuginfo

Package

Name
dhcp-relay-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-relay-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-server

Package

Name
dhcp-server
Purl
pkg:rpm/rocky-linux/dhcp-server?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-server-debuginfo

Package

Name
dhcp-server-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-server-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-client

Package

Name
dhcp-client
Purl
pkg:rpm/rocky-linux/dhcp-client?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-client-debuginfo

Package

Name
dhcp-client-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-client-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-debuginfo

Package

Name
dhcp-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-debugsource

Package

Name
dhcp-debugsource
Purl
pkg:rpm/rocky-linux/dhcp-debugsource?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-relay

Package

Name
dhcp-relay
Purl
pkg:rpm/rocky-linux/dhcp-relay?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-relay-debuginfo

Package

Name
dhcp-relay-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-relay-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-server

Package

Name
dhcp-server
Purl
pkg:rpm/rocky-linux/dhcp-server?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-server-debuginfo

Package

Name
dhcp-server-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-server-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-client

Package

Name
dhcp-client
Purl
pkg:rpm/rocky-linux/dhcp-client?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-client-debuginfo

Package

Name
dhcp-client-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-client-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-debuginfo

Package

Name
dhcp-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-debugsource

Package

Name
dhcp-debugsource
Purl
pkg:rpm/rocky-linux/dhcp-debugsource?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-relay

Package

Name
dhcp-relay
Purl
pkg:rpm/rocky-linux/dhcp-relay?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-relay-debuginfo

Package

Name
dhcp-relay-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-relay-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-server

Package

Name
dhcp-server
Purl
pkg:rpm/rocky-linux/dhcp-server?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-server-debuginfo

Package

Name
dhcp-server-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-server-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-client

Package

Name
dhcp-client
Purl
pkg:rpm/rocky-linux/dhcp-client?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-client-debuginfo

Package

Name
dhcp-client-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-client-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-debuginfo

Package

Name
dhcp-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-debugsource

Package

Name
dhcp-debugsource
Purl
pkg:rpm/rocky-linux/dhcp-debugsource?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-relay

Package

Name
dhcp-relay
Purl
pkg:rpm/rocky-linux/dhcp-relay?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-relay-debuginfo

Package

Name
dhcp-relay-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-relay-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-server

Package

Name
dhcp-server
Purl
pkg:rpm/rocky-linux/dhcp-server?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-server-debuginfo

Package

Name
dhcp-server-debuginfo
Purl
pkg:rpm/rocky-linux/dhcp-server-debuginfo?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"
dhcp-common

Package

Name
dhcp-common
Purl
pkg:rpm/rocky-linux/dhcp-common?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.4.2-22.b1.el9.rocky.0.1
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:97486.json"