SUSE update for xen



Risk High
Patch available YES
Number of vulnerabilities 10
CVE-ID CVE-2022-21123
CVE-2022-21125
CVE-2022-21166
CVE-2022-23816
CVE-2022-23825
CVE-2022-26362
CVE-2022-26363
CVE-2022-26364
CVE-2022-29900
CVE-2022-33745
CWE-ID CWE-200
CWE-843
CWE-362
CWE-119
CWE-1037
CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
 SUSE OpenStack Cloud Crowbar
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

SUSE OpenStack Cloud
Operating systems & Components / Operating system

xen-tools-domU-debuginfo
Operating systems & Components / Operating system package or component

xen-tools-domU
Operating systems & Components / Operating system package or component

xen-tools-debuginfo
Operating systems & Components / Operating system package or component

xen-tools
Operating systems & Components / Operating system package or component

xen-libs-debuginfo
Operating systems & Components / Operating system package or component

xen-libs-debuginfo-32bit
Operating systems & Components / Operating system package or component

xen-libs
Operating systems & Components / Operating system package or component

xen-libs-32bit
Operating systems & Components / Operating system package or component

xen-doc-html
Operating systems & Components / Operating system package or component

xen-debugsource
Operating systems & Components / Operating system package or component

xen
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 10 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU64364

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-21123

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.


Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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.

2) Information disclosure

EUVDB-ID: #VU64365

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-21125

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.



Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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) Information disclosure

EUVDB-ID: #VU64366

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-21166

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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) Type Confusion

EUVDB-ID: #VU65219

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-2022-23816

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a branch type confusion. A local user can force the branch predictor to predict the wrong branch type and gain access to sensitive information.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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.

5) Type Confusion

EUVDB-ID: #VU65204

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-2022-23825

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a branch type confusion. A local user can force the branch predictor to predict the wrong branch type and gain access to sensitive information.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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.

6) Race condition

EUVDB-ID: #VU64446

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-26362

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to race condition in typeref acquisition Xen. A remote attacker can execute arbitrary code on the target system.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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.

7) Buffer overflow

EUVDB-ID: #VU64448

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-26363

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient care with non-coherent mappings. A remote attacker can pass a specially crafted data and trigger memory corruption and execute arbitrary code on the target system.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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.

8) Buffer overflow

EUVDB-ID: #VU64447

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-26364

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient care with non-coherent mappings. A remote attacker can pass a specially crafted data and trigger memory corruption and execute arbitrary code on the target system.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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.

9) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65205

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-29900

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

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

The vulnerability exists due to a mistrained branch predictions for return instructions. A local user can execute arbitrary speculative code under certain microarchitecture-dependent conditions. The vulnerability was dubbed  RETbleed.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


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.

10) Resource exhaustion

EUVDB-ID: #VU65801

Risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/U:Green]

CVE-ID: CVE-2022-33745

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to an error in code responsible for migration and work around of kernels unaware of L1TF in shadow mode, related to TLB flush. A remote user with access to x86 PV guest can start the migration process to trigger the vulnerability and exhaust all available memory, resulting in a denial of service (DoS) attack.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS

SUSE OpenStack Cloud: 9

xen-tools-domU-debuginfo: before 4.11.4_30-2.76.1

xen-tools-domU: before 4.11.4_30-2.76.1

xen-tools-debuginfo: before 4.11.4_30-2.76.1

xen-tools: before 4.11.4_30-2.76.1

xen-libs-debuginfo: before 4.11.4_30-2.76.1

xen-libs-debuginfo-32bit: before 4.11.4_30-2.76.1

xen-libs: before 4.11.4_30-2.76.1

xen-libs-32bit: before 4.11.4_30-2.76.1

xen-doc-html: before 4.11.4_30-2.76.1

xen-debugsource: before 4.11.4_30-2.76.1

xen: before 4.11.4_30-2.76.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222560-1/


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



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