Improper access control in Keepalived - CVE-2021-44225

Vulnerability identifier: #VU66814

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-44225

CWE-ID: CWE-284

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to the D-Bus policy does not sufficiently restrict the message destination. A local user can inspect and manipulate any property in the message and bypass implemented security restrictions.

Keepalived
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Storage
Red Hat Enterprise Linux for Power, little endian
Anolis OS
HPE Helion Openstack
SUSE OpenStack Cloud
SUSE OpenStack Cloud Crowbar
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
SUSE Linux Enterprise Server
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise High Availability
openSUSE Leap
Ubuntu
openEuler
Fedora
keepalived (Ubuntu package)
keepalived-debugsource
keepalived-debuginfo
keepalived
keepalived-help
keepalived (Red Hat package)
Red Hat OpenShift Container Platform

Install updates from vendor's website.

Keepalived - update to 2.2.5
keepalived (Ubuntu package) - addressed in versions 1:1.3.9-1ubuntu0.18.04.3, 1:2.0.19-2ubuntu0.1, 1:2.1.5-0.2ubuntu0.1, 1:2.1.5-0.2ubuntu1.1
keepalived-debugsource - addressed in versions 2.0.19-3.6.1, 2.0.19-3.9.1, 2.0.19-150100.3.6.1, 2.2.2-150400.3.5.1
keepalived-debuginfo - addressed in versions 2.0.19-3.6.1, 2.0.19-3.9.1, 2.0.19-150100.3.6.1, 2.2.2-150400.3.5.1
keepalived - addressed in versions 2.0.19-3.6.1, 2.0.19-3.9.1, 2.0.19-150100.3.6.1, 2.2.2-150400.3.5.1
keepalived - update to 2.0.20-19
keepalived-debugsource - update to 2.0.20-19
keepalived-debuginfo - update to 2.0.20-19
keepalived-help - update to 2.0.20-19
keepalived - update to 2.1.5-8
keepalived (Red Hat package) - update to 2.1.5-8.el8
keepalived - addressed in versions 2.2.4-2.fc34, 2.2.4-2.fc35
Red Hat OpenShift Container Platform - update to 4.11.0

• https://github.com/acassen/keepalived/commit/7977fec0be89ae6fe87405b3f8da2f0b5e415e3d
• https://github.com/acassen/keepalived/pull/2063
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5226RYNMNB7FL4MSJDIBBGPUWH6LMRYV/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6O2R6EXURJQFPFPYFWRCZLUYVWQCLSZM/

• Security restrictions bypass in Keepalived
• SUSE update for keepalived
• Multiple vulnerabilities in OpenShift Container Platform 4.11
• SUSE update for keepalived
• SUSE update for keepalived
• SUSE update for keepalived
• Red Hat Enterprise Linux 8 update for keepalived
• Ubuntu update for keepalived
• openEuler update for keepalived
• Fedora 35 update for keepalived
• Fedora 34 update for keepalived
• Anolis OS update for keepalived