SUSE update for xen

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU85929

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-46839

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a malicious guest to gain access to sensitive information.

The vulnerability exists due to an error in phantom functions implementation for PCI devices. Under certain circumstances a malicious guest assigned a PCI device with phantom functions may be able to access memory from a previous owner of the device.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Server for SAP Applications 15: SP3

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15: SP3

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing 15: SP3

SUSE Enterprise Storage: 7.1

SUSE Linux Enterprise Micro: 5.1 - 5.2

openSUSE Leap: 15.3

xen-libs-64bit: before 4.14.6_10-150300.3.63.1

xen-libs-64bit-debuginfo: before 4.14.6_10-150300.3.63.1

xen-tools-xendomains-wait-disk: before 4.14.6_10-150300.3.63.1

xen: before 4.14.6_10-150300.3.63.1

xen-doc-html: before 4.14.6_10-150300.3.63.1

xen-tools-debuginfo: before 4.14.6_10-150300.3.63.1

xen-tools: before 4.14.6_10-150300.3.63.1

xen-libs-32bit: before 4.14.6_10-150300.3.63.1

xen-libs-32bit-debuginfo: before 4.14.6_10-150300.3.63.1

xen-libs-debuginfo: before 4.14.6_10-150300.3.63.1

xen-devel: before 4.14.6_10-150300.3.63.1

xen-debugsource: before 4.14.6_10-150300.3.63.1

xen-tools-domU: before 4.14.6_10-150300.3.63.1

xen-libs: before 4.14.6_10-150300.3.63.1

xen-tools-domU-debuginfo: before 4.14.6_10-150300.3.63.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp3_ltss:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:7.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.3:*:*:*:*:*:*:*
• cpe:2.3:a:suse:xen-libs-64bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-64bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-xendomains-wait-disk:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-doc-html:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2024/suse-su-20240264-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.