Resource management error in Xen - CVE-2023-34322

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Main Vulnerability Database Vulnerabilities #VU80924

Resource management error in Xen - CVE-2023-34322

Published: September 20, 2023


Vulnerability identifier: #VU80924
CSH Severity: Low
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-34322
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to improper management of internal resources when running PV guests in shadow paging mode. A malicious guest can run a specially crafted application on the system that causes shortage of memory in the associated with the domain shadow pool and forces Xen to tear down page tables. This can result in memory leak, denial of service or privilege escalation.

The vulnerability can be exploited by 64-bit PV guests on x86 systems.


Affected software

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

How to mitigate CVE-2023-34322

Install updates from vendor's website.

ObjectScale - update to 1.4.0
xen-debugsource - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-devel - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-libs-32bit - addressed in versions 4.12.4_38-3.94.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-tools-debuginfo - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-tools-domU-debuginfo - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-libs - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-libs-debuginfo - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-tools - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-tools-domU - addressed in versions 4.12.4_38-3.94.1, 4.12.4_38-150100.3.92.1, 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-doc-html - addressed in versions 4.12.4_38-3.94.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-libs-debuginfo-32bit - update to 4.12.4_38-3.94.1
xen-tools-xendomains-wait-disk - addressed in versions 4.13.5_04-150200.3.77.1, 4.14.6_04-150300.3.54.1, 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen - addressed in versions 4.16.5-2.fc37, 4.17.2-2.fc38, 4.17.2-2.fc39
xen-libs-32bit-debuginfo - addressed in versions 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-libs-64bit - addressed in versions 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
xen-libs-64bit-debuginfo - addressed in versions 4.16.5_04-150400.4.34.1, 4.16.5_08-150400.4.40.1, 4.17.2_04-150500.3.9.1, 4.17.2_08-150500.3.15.1
app-emulation/xen - update to 4.17.4

External References

Related Security Bulletins