SUSE update for xen

1) Information exposure through microarchitectural state after transient execution

EUVDB-ID: #VU79262

Risk: Medium

CVSSv4.0: 2.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/U:Green]

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

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

xen-libs-debuginfo-32bit: before 4.12.4_38-3.94.1

xen-doc-html: before 4.12.4_38-3.94.1

xen-tools-domU: before 4.12.4_38-3.94.1

xen-tools: before 4.12.4_38-3.94.1

xen-libs-debuginfo: before 4.12.4_38-3.94.1

xen-libs: before 4.12.4_38-3.94.1

xen: before 4.12.4_38-3.94.1

xen-tools-domU-debuginfo: before 4.12.4_38-3.94.1

xen-tools-debuginfo: before 4.12.4_38-3.94.1

xen-libs-32bit: before 4.12.4_38-3.94.1

xen-devel: before 4.12.4_38-3.94.1

xen-debugsource: before 4.12.4_38-3.94.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-doc-html:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-debugsource:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233894-1/

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) Division by zero

EUVDB-ID: #VU79239

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-20588

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

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

The vulnerability exists due to a divide by zero error that can return speculative data. A local user can gain access to potentially sensitive information.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

xen-libs-debuginfo-32bit: before 4.12.4_38-3.94.1

xen-doc-html: before 4.12.4_38-3.94.1

xen-tools-domU: before 4.12.4_38-3.94.1

xen-tools: before 4.12.4_38-3.94.1

xen-libs-debuginfo: before 4.12.4_38-3.94.1

xen-libs: before 4.12.4_38-3.94.1

xen: before 4.12.4_38-3.94.1

xen-tools-domU-debuginfo: before 4.12.4_38-3.94.1

xen-tools-debuginfo: before 4.12.4_38-3.94.1

xen-libs-32bit: before 4.12.4_38-3.94.1

xen-devel: before 4.12.4_38-3.94.1

xen-debugsource: before 4.12.4_38-3.94.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-doc-html:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-debugsource:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233894-1/

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.

3) Use-after-free

EUVDB-ID: #VU78572

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

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

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

xen-libs-debuginfo-32bit: before 4.12.4_38-3.94.1

xen-doc-html: before 4.12.4_38-3.94.1

xen-tools-domU: before 4.12.4_38-3.94.1

xen-tools: before 4.12.4_38-3.94.1

xen-libs-debuginfo: before 4.12.4_38-3.94.1

xen-libs: before 4.12.4_38-3.94.1

xen: before 4.12.4_38-3.94.1

xen-tools-domU-debuginfo: before 4.12.4_38-3.94.1

xen-tools-debuginfo: before 4.12.4_38-3.94.1

xen-libs-32bit: before 4.12.4_38-3.94.1

xen-devel: before 4.12.4_38-3.94.1

xen-debugsource: before 4.12.4_38-3.94.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-doc-html:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-debugsource:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233894-1/

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.

4) Resource management error

EUVDB-ID: #VU80924

Risk: Low

CVSSv4.0: 4.8 [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/E:U/U:Clear]

CVE-ID: CVE-2023-34322

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

xen-libs-debuginfo-32bit: before 4.12.4_38-3.94.1

xen-doc-html: before 4.12.4_38-3.94.1

xen-tools-domU: before 4.12.4_38-3.94.1

xen-tools: before 4.12.4_38-3.94.1

xen-libs-debuginfo: before 4.12.4_38-3.94.1

xen-libs: before 4.12.4_38-3.94.1

xen: before 4.12.4_38-3.94.1

xen-tools-domU-debuginfo: before 4.12.4_38-3.94.1

xen-tools-debuginfo: before 4.12.4_38-3.94.1

xen-libs-32bit: before 4.12.4_38-3.94.1

xen-devel: before 4.12.4_38-3.94.1

xen-debugsource: before 4.12.4_38-3.94.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-doc-html:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-domu-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-libs-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xen-debugsource:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233894-1/

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.