SUSE update for xen

1) Cross-thread return address predictions

EUVDB-ID: #VU72470

Risk: Low

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

CVE-ID: CVE-2022-27672

CWE-ID: CWE-1342 - Information Exposure through Microarchitectural State after Transient Execution

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to certain AMD processors may speculatively execute instructions at an incorrect return site after an SMT mode switch that may potentially lead to information disclosure.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

Server Applications Module: 15-SP4

SUSE Linux Enterprise Micro for Rancher: 5.3

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Linux Enterprise Desktop 15: SP4

Basesystem Module: 15-SP4

openSUSE Leap Micro: 5.3

SUSE Linux Enterprise Micro: 5.3

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

xen-tools-xendomains-wait-disk: before 4.16.3_04-150400.4.22.1

xen-libs-32bit-debuginfo: before 4.16.3_04-150400.4.22.1

xen-libs-32bit: before 4.16.3_04-150400.4.22.1

xen-doc-html: before 4.16.3_04-150400.4.22.1

xen-tools-domU: before 4.16.3_04-150400.4.22.1

xen-devel: before 4.16.3_04-150400.4.22.1

xen-tools-debuginfo: before 4.16.3_04-150400.4.22.1

xen-tools: before 4.16.3_04-150400.4.22.1

xen: before 4.16.3_04-150400.4.22.1

xen-tools-domU-debuginfo: before 4.16.3_04-150400.4.22.1

xen-libs: before 4.16.3_04-150400.4.22.1

xen-debugsource: before 4.16.3_04-150400.4.22.1

xen-libs-debuginfo: before 4.16.3_04-150400.4.22.1

CPE2.3

• cpe:2.3:o:suse:server_applications_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:xen-tools-xendomains-wait-disk:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-libs-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-libs-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-doc-html:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-tools-domu:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-tools-domu-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:xen-libs-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230692-1/

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.