Reachable Assertion in Xen - CVE-2023-34323
Published: October 11, 2023
Vulnerability identifier: #VU81895
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-34323
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote guest to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when handling negative quota values in C Xenstored. A malicious guest can craft a transaction that forces C Xenstored to check quota value and perform a denial of service attack.
Affected software
Xen
Gentoo Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 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
SUSE Enterprise Storage
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
Server Applications Module
Basesystem Module
openSUSE Leap
Fedora
xen-devel
xen-debugsource
xen-tools-domU
xen-tools
xen-doc-html
xen-libs-debuginfo-32bit
xen-libs-32bit
xen-tools-debuginfo
xen-tools-domU-debuginfo
xen
xen-libs
xen-libs-debuginfo
xen-tools-xendomains-wait-disk
xen-libs-64bit
xen-libs-64bit-debuginfo
xen-libs-32bit-debuginfo
app-emulation/xen
Gentoo Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 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
SUSE Enterprise Storage
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
Server Applications Module
Basesystem Module
openSUSE Leap
Fedora
xen-devel
xen-debugsource
xen-tools-domU
xen-tools
xen-doc-html
xen-libs-debuginfo-32bit
xen-libs-32bit
xen-tools-debuginfo
xen-tools-domU-debuginfo
xen
xen-libs
xen-libs-debuginfo
xen-tools-xendomains-wait-disk
xen-libs-64bit
xen-libs-64bit-debuginfo
xen-libs-32bit-debuginfo
app-emulation/xen
How to mitigate CVE-2023-34323
Install updates from vendor's website.
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
xen-libs-debuginfo-32bit - update to 4.12.4_40-3.97.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
xen-libs-64bit - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.17.2_06-150500.3.12.1
xen-libs-64bit-debuginfo - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.17.2_06-150500.3.12.1
xen-libs-32bit-debuginfo - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.17.2_06-150500.3.12.1
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
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
xen-libs-debuginfo-32bit - update to 4.12.4_40-3.97.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
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, 4.17.2_06-150500.3.12.1
xen-libs-64bit - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.17.2_06-150500.3.12.1
xen-libs-64bit-debuginfo - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.17.2_06-150500.3.12.1
xen-libs-32bit-debuginfo - addressed in versions 4.14.6_06-150300.3.57.1, 4.16.5_06-150400.4.37.1, 4.17.2_06-150500.3.12.1
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