SUSE update for xen



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-42335
CVE-2022-42336
CWE-ID CWE-822
CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
Server Applications Module
Operating systems & Components / Operating system

Basesystem Module
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP Applications 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Real Time 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Desktop 15
Operating systems & Components / Operating system

openSUSE Leap
Operating systems & Components / Operating system

xen-libs-64bit-debuginfo
Operating systems & Components / Operating system package or component

xen-libs-64bit
Operating systems & Components / Operating system package or component

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

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

xen
Operating systems & Components / Operating system package or component

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

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

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

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

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

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

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

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

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

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

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Untrusted Pointer Dereference

EUVDB-ID: #VU75481

Risk: Medium

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42335

CWE-ID: CWE-822 - Untrusted Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to an arbitrary pointer dereference. A malicious guest running in shadow mode and having a PCI device passed through can execute arbitrary code on the hypervisor.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

Server Applications Module: 15-SP5

Basesystem Module: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

SUSE Linux Enterprise Desktop 15: SP5

openSUSE Leap: 15.5

xen-libs-64bit-debuginfo: before 4.17.1_04-150500.3.3.1

xen-libs-64bit: before 4.17.1_04-150500.3.3.1

xen-tools-xendomains-wait-disk: before 4.17.1_04-150500.3.3.1

xen-doc-html: before 4.17.1_04-150500.3.3.1

xen: before 4.17.1_04-150500.3.3.1

xen-tools: before 4.17.1_04-150500.3.3.1

xen-tools-debuginfo: before 4.17.1_04-150500.3.3.1

xen-libs-32bit: before 4.17.1_04-150500.3.3.1

xen-libs-32bit-debuginfo: before 4.17.1_04-150500.3.3.1

xen-libs-debuginfo: before 4.17.1_04-150500.3.3.1

xen-devel: before 4.17.1_04-150500.3.3.1

xen-tools-domU-debuginfo: before 4.17.1_04-150500.3.3.1

xen-libs: before 4.17.1_04-150500.3.3.1

xen-tools-domU: before 4.17.1_04-150500.3.3.1

xen-debugsource: before 4.17.1_04-150500.3.3.1

CPE2.3 External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232535-1/


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.

2) Integer overflow

EUVDB-ID: #VU77522

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42336

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow in SSBD imlementation. A remote guest can mislead other guests into observing SSBD active when it is not.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

Server Applications Module: 15-SP5

Basesystem Module: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

SUSE Linux Enterprise Desktop 15: SP5

openSUSE Leap: 15.5

xen-libs-64bit-debuginfo: before 4.17.1_04-150500.3.3.1

xen-libs-64bit: before 4.17.1_04-150500.3.3.1

xen-tools-xendomains-wait-disk: before 4.17.1_04-150500.3.3.1

xen-doc-html: before 4.17.1_04-150500.3.3.1

xen: before 4.17.1_04-150500.3.3.1

xen-tools: before 4.17.1_04-150500.3.3.1

xen-tools-debuginfo: before 4.17.1_04-150500.3.3.1

xen-libs-32bit: before 4.17.1_04-150500.3.3.1

xen-libs-32bit-debuginfo: before 4.17.1_04-150500.3.3.1

xen-libs-debuginfo: before 4.17.1_04-150500.3.3.1

xen-devel: before 4.17.1_04-150500.3.3.1

xen-tools-domU-debuginfo: before 4.17.1_04-150500.3.3.1

xen-libs: before 4.17.1_04-150500.3.3.1

xen-tools-domU: before 4.17.1_04-150500.3.3.1

xen-debugsource: before 4.17.1_04-150500.3.3.1

CPE2.3 External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232535-1/


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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