State Issues in Xen - CVE-2023-34327

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Main Vulnerability Database Vulnerabilities #VU81901

State Issues in Xen - CVE-2023-34327

Published: October 11, 2023


Vulnerability identifier: #VU81901
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-34327
CWE-ID: CWE-371
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of guest state when using Debug Masks in HVM vCPU. A malicious guest can perform a denial of service (DoS) attack against the guest OS.


Affected software

Xen
Citrix Hypervisor
Gentoo Linux
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE CaaS Platform
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
SUSE Enterprise Storage
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
Server Applications Module
Basesystem Module
openSUSE Leap
Fedora
ObjectScale
xen-devel
xen-debugsource
xen-libs-debuginfo
xen-libs
xen
xen-tools-domU-debuginfo
xen-tools-debuginfo
xen-libs-32bit
xen-libs-debuginfo-32bit
xen-doc-html
xen-tools
xen-tools-domU
xen-tools-xendomains-wait-disk
xen-libs-32bit-debuginfo
xen-libs-64bit
xen-libs-64bit-debuginfo
app-emulation/xen

How to mitigate CVE-2023-34327

Install updates from vendor's website.

ObjectScale - update to 1.4.0
xen-devel - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-debugsource - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-libs-debuginfo - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-libs - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-tools-domU-debuginfo - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-tools-debuginfo - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-libs-32bit - addressed in versions 4.12.4_40-3.97.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-libs-debuginfo-32bit - update to 4.12.4_40-3.97.1
xen-doc-html - addressed in versions 4.12.4_40-3.97.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-tools - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-tools-domU - addressed in versions 4.12.4_40-3.97.1, 4.12.4_40-150100.3.95.1, 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-tools-xendomains-wait-disk - addressed in versions 4.13.5_06-150200.3.80.1, 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-libs-32bit-debuginfo - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-libs-64bit - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen-libs-64bit-debuginfo - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.16.5_08-150400.4.40.1, 4.17.2_06-150500.3.12.1, 4.17.2_08-150500.3.15.1
xen - addressed in versions 4.16.5-3.fc37, 4.17.2-4.fc38, 4.17.2-4.fc39
app-emulation/xen - update to 4.17.4

External References

Related Security Bulletins