Input validation error in DHCP - CVE-2022-2928

 

Input validation error in DHCP - CVE-2022-2928

Published: October 5, 2022


Vulnerability identifier: #VU67944
CSH Severity: Low
CVSS v4: 6 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-2928
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error related to the way processing lease queries are processed by the DHCP server. With a DHCP server configured with "allow leasequery;" a remote attacker can send lease queries for the same lease multiple times, leading to the "add_option()" function being repeatedly called. This can cause an option's "refcount" field to overflow and the server to abort.


Affected software

DHCP
Oracle Linux
Gentoo Linux
Debian Linux
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Manager Proxy
SUSE Enterprise Storage
IBM i
Red Hat Enterprise Linux for IBM z Systems
Anolis OS
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Oracle Solaris
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Server
SUSE Linux Enterprise Software Development Kit
Slackware Linux
Ubuntu
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Module for Server Applications
openSUSE Leap
openEuler
Fedora
Multicluster Engine for Kubernetes
Dell EMC PowerProtect Data Protection
SmartFabric OS10
Red Hat OpenShift Container Platform
HPE Moonshot 1500 Chassis Manager
RecoverPoint for Virtual Machines
isc-dhcp-server (Ubuntu package)
isc-dhcp-client (Ubuntu package)
dhcp-server-debuginfo
dhcp-server
dhcp-relay-debuginfo
dhcp-relay
dhcp-client-debuginfo
dhcp-client
dhcp
dhcp-devel
dhcp-debuginfo
dhcp-debugsource
dhcp-doc
dhcp (Red Hat package)
dhcp-devel-doc
dhcp-common
dhcp-libs
isc-dhcp (Debian package)
dhcp-help
Dell EMC NetWorker vProxy
EMC ViPR SRM
Dell EMC Storage Monitoring and Reporting (SMR)
RecoverPoint for VMs

How to mitigate CVE-2022-2928

Install updates from vendor's website.

DHCP - addressed in versions 4.1-ESV-R16-P2, 4.4.3-P1
Multicluster Engine for Kubernetes - addressed in versions 2.0.9, 2.1.7, 2.2.4
Dell EMC PowerProtect Data Protection - update to 2.7.8
Red Hat OpenShift Container Platform - update to 4.13.2
RecoverPoint for Virtual Machines - update to 6.0 SP2 P1
isc-dhcp-server (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 4.3.5-3ubuntu7.4, 4.4.1-2.1ubuntu5.20.04.4, 4.4.1-2.3ubuntu2.3
isc-dhcp-client (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 4.3.5-3ubuntu7.4, 4.4.1-2.1ubuntu5.20.04.4, 4.4.1-2.3ubuntu2.3
HPE Moonshot 1500 Chassis Manager - update to 4.0-b43
Dell EMC NetWorker vProxy - update to 4.3.0-40
dhcp-server-debuginfo - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-server - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-relay-debuginfo - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-relay - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-client-debuginfo - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-client - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-devel - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-debuginfo - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-debugsource - addressed in versions 4.3.3-10.28.1, 4.3.6.P1-150000.6.17.1
dhcp-doc - update to 4.3.6.P1-150000.6.17.1
dhcp (Red Hat package) - addressed in versions 4.3.6-49.el8, 4.4.2-18.b1.el9
dhcp-server - update to 4.3.6-49.0.1
dhcp-devel-doc - update to 4.3.6-49.0.1
dhcp-common - update to 4.3.6-49.0.1
dhcp-client - update to 4.3.6-49.0.1
dhcp-libs - update to 4.3.6-49.0.1
dhcp-relay - update to 4.3.6-49.0.1
isc-dhcp (Debian package) - update to 4.4.1-2.3+deb11u1
dhcp - update to 4.4.2-9
dhcp-debugsource - update to 4.4.2-9
dhcp-debuginfo - update to 4.4.2-9
dhcp-devel - update to 4.4.2-9
dhcp-help - update to 4.4.2-9
dhcp - update to 4.4.3_P1
dhcp - addressed in versions 4.4.3-4.P1.fc35, 4.4.3-4.P1.fc36, 4.4.3-4.P1.fc37, 4.4.3-4.P1.fc38
EMC ViPR SRM - update to 4.8.0.1
Dell EMC Storage Monitoring and Reporting (SMR) - update to 4.8.0.1
RecoverPoint for VMs - update to 6.0.SP1.P1
SmartFabric OS10 - update to 10.5.6.1

External References

Related Security Bulletins