SUSE update for xen

1) Information exposure through microarchitectural state after transient execution

EUVDB-ID: #VU79262

Risk: Medium

CVSSv3.1: 7.6 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-40982

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

Exploit availability: No

Description

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

The vulnerability exists due to the way data is shared between threads whereby the AVX GATHER instructions on Intel processors can forward the content of stale vector registers to dependent instructions. A malicious guest can infer data from different contexts on the same core and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

openSUSE Leap Micro: 5.3 - 5.4

SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4

Server Applications Module: 15-SP4

SUSE Linux Enterprise Micro: 5.3 - 5.4

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

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

xen-libs-64bit-debuginfo: before 4.16.5_02-150400.4.31.1

xen-libs-64bit: before 4.16.5_02-150400.4.31.1

xen-tools-xendomains-wait-disk: before 4.16.5_02-150400.4.31.1

xen: before 4.16.5_02-150400.4.31.1

xen-tools-debuginfo: before 4.16.5_02-150400.4.31.1

xen-doc-html: before 4.16.5_02-150400.4.31.1

xen-tools: before 4.16.5_02-150400.4.31.1

xen-libs-32bit: before 4.16.5_02-150400.4.31.1

xen-libs-32bit-debuginfo: before 4.16.5_02-150400.4.31.1

xen-tools-domU-debuginfo: before 4.16.5_02-150400.4.31.1

xen-debugsource: before 4.16.5_02-150400.4.31.1

xen-libs-debuginfo: before 4.16.5_02-150400.4.31.1

xen-devel: before 4.16.5_02-150400.4.31.1

xen-tools-domU: before 4.16.5_02-150400.4.31.1

xen-libs: before 4.16.5_02-150400.4.31.1

CPE2.3

• cpe:2.3:o:suse:opensuse_leap_micro:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:server_applications_module:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro: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: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:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233395-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Information disclosure

EUVDB-ID: #VU79263

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20569

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to a side channel issue in AMD CPUs. A remote user can influence the return address prediction and gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

openSUSE Leap Micro: 5.3 - 5.4

SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4

Server Applications Module: 15-SP4

SUSE Linux Enterprise Micro: 5.3 - 5.4

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

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

xen-libs-64bit-debuginfo: before 4.16.5_02-150400.4.31.1

xen-libs-64bit: before 4.16.5_02-150400.4.31.1

xen-tools-xendomains-wait-disk: before 4.16.5_02-150400.4.31.1

xen: before 4.16.5_02-150400.4.31.1

xen-tools-debuginfo: before 4.16.5_02-150400.4.31.1

xen-doc-html: before 4.16.5_02-150400.4.31.1

xen-tools: before 4.16.5_02-150400.4.31.1

xen-libs-32bit: before 4.16.5_02-150400.4.31.1

xen-libs-32bit-debuginfo: before 4.16.5_02-150400.4.31.1

xen-tools-domU-debuginfo: before 4.16.5_02-150400.4.31.1

xen-debugsource: before 4.16.5_02-150400.4.31.1

xen-libs-debuginfo: before 4.16.5_02-150400.4.31.1

xen-devel: before 4.16.5_02-150400.4.31.1

xen-tools-domU: before 4.16.5_02-150400.4.31.1

xen-libs: before 4.16.5_02-150400.4.31.1

CPE2.3

• cpe:2.3:o:suse:opensuse_leap_micro:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:server_applications_module:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro: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: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:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233395-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Use-after-free

EUVDB-ID: #VU78572

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20593

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in AMD Zen2 processors. A local user can trigger a use-after-free error and execute arbitrary code on the system.

Note, the vulnerability was dubbed Zenbleed.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

openSUSE Leap Micro: 5.3 - 5.4

SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4

Server Applications Module: 15-SP4

SUSE Linux Enterprise Micro: 5.3 - 5.4

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

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

xen-libs-64bit-debuginfo: before 4.16.5_02-150400.4.31.1

xen-libs-64bit: before 4.16.5_02-150400.4.31.1

xen-tools-xendomains-wait-disk: before 4.16.5_02-150400.4.31.1

xen: before 4.16.5_02-150400.4.31.1

xen-tools-debuginfo: before 4.16.5_02-150400.4.31.1

xen-doc-html: before 4.16.5_02-150400.4.31.1

xen-tools: before 4.16.5_02-150400.4.31.1

xen-libs-32bit: before 4.16.5_02-150400.4.31.1

xen-libs-32bit-debuginfo: before 4.16.5_02-150400.4.31.1

xen-tools-domU-debuginfo: before 4.16.5_02-150400.4.31.1

xen-debugsource: before 4.16.5_02-150400.4.31.1

xen-libs-debuginfo: before 4.16.5_02-150400.4.31.1

xen-devel: before 4.16.5_02-150400.4.31.1

xen-tools-domU: before 4.16.5_02-150400.4.31.1

xen-libs: before 4.16.5_02-150400.4.31.1

CPE2.3

• cpe:2.3:o:suse:opensuse_leap_micro:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:server_applications_module:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro: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: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:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233395-1/

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.