SUSE update for xen

1) Input validation error

EUVDB-ID: #VU88228

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-46842

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of register values when invoking a hypercall. A malicious HVM or PVH guest can pass specially crafted input to the hypervisor and perform a denial of service (DoS) attack.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

Server Applications Module: 15-SP6

Basesystem Module: 15-SP6

SUSE Linux Enterprise Real Time 15: SP6

openSUSE Leap: 15.6

SUSE Linux Enterprise Server for SAP Applications 15: SP6

SUSE Linux Enterprise Server 15: SP6

SUSE Linux Enterprise Desktop 15: SP6

xen-libs-64bit-debuginfo: before 4.18.2_06-150600.3.3.1

xen-libs-64bit: before 4.18.2_06-150600.3.3.1

xen-doc-html: before 4.18.2_06-150600.3.3.1

xen-libs-32bit: before 4.18.2_06-150600.3.3.1

xen-libs-32bit-debuginfo: before 4.18.2_06-150600.3.3.1

xen-tools-domU-debuginfo: before 4.18.2_06-150600.3.3.1

xen-libs-debuginfo: before 4.18.2_06-150600.3.3.1

xen-libs: before 4.18.2_06-150600.3.3.1

xen-tools-domU: before 4.18.2_06-150600.3.3.1

xen-tools-xendomains-wait-disk: before 4.18.2_06-150600.3.3.1

xen-devel: before 4.18.2_06-150600.3.3.1

xen-tools-debuginfo: before 4.18.2_06-150600.3.3.1

xen-tools: before 4.18.2_06-150600.3.3.1

xen: before 4.18.2_06-150600.3.3.1

xen-debugsource: before 4.18.2_06-150600.3.3.1

CPE2.3

• cpe:2.3:o:suse:server_applications_module:15-SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:basesystem_module:15-SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP6:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20242531-1/

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.