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

SUSE Linux Enterprise Micro: 5.5

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: before 4.17.4_02-150500.3.30.1

xen-libs-64bit-debuginfo: before 4.17.4_02-150500.3.30.1

xen-tools-xendomains-wait-disk: before 4.17.4_02-150500.3.30.1

xen-libs-32bit: before 4.17.4_02-150500.3.30.1

xen-libs-32bit-debuginfo: before 4.17.4_02-150500.3.30.1

xen-tools-domU-debuginfo: before 4.17.4_02-150500.3.30.1

xen-libs: before 4.17.4_02-150500.3.30.1

xen-tools-domU: before 4.17.4_02-150500.3.30.1

xen-debugsource: before 4.17.4_02-150500.3.30.1

xen-devel: before 4.17.4_02-150500.3.30.1

xen-libs-debuginfo: before 4.17.4_02-150500.3.30.1

xen: before 4.17.4_02-150500.3.30.1

xen-doc-html: before 4.17.4_02-150500.3.30.1

xen-tools: before 4.17.4_02-150500.3.30.1

xen-tools-debuginfo: before 4.17.4_02-150500.3.30.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241295-1/

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) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU88374

Risk: Medium

CVSSv3.1: 7.8 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-2201

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

Exploit availability: No

Description

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

The vulnerability exists due to native branch history injection on x86 systems. A malicious guest can infer the contents of arbitrary host memory, including memory assigned to other guests and compromise the affected system.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

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: before 4.17.4_02-150500.3.30.1

xen-libs-64bit-debuginfo: before 4.17.4_02-150500.3.30.1

xen-tools-xendomains-wait-disk: before 4.17.4_02-150500.3.30.1

xen-libs-32bit: before 4.17.4_02-150500.3.30.1

xen-libs-32bit-debuginfo: before 4.17.4_02-150500.3.30.1

xen-tools-domU-debuginfo: before 4.17.4_02-150500.3.30.1

xen-libs: before 4.17.4_02-150500.3.30.1

xen-tools-domU: before 4.17.4_02-150500.3.30.1

xen-debugsource: before 4.17.4_02-150500.3.30.1

xen-devel: before 4.17.4_02-150500.3.30.1

xen-libs-debuginfo: before 4.17.4_02-150500.3.30.1

xen: before 4.17.4_02-150500.3.30.1

xen-doc-html: before 4.17.4_02-150500.3.30.1

xen-tools: before 4.17.4_02-150500.3.30.1

xen-tools-debuginfo: before 4.17.4_02-150500.3.30.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241295-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

3) Type confusion

EUVDB-ID: #VU88372

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-2024-31142

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a logical error caused by a branch type confusion when implementing fixes for the following vulnerabilities:

#VU65219 (CVE-2022-23816)
#VU65204 (CVE-2022-23825)
#VU65205 (CVE-2022-29900)
#VU79263 (CVE-2023-20569)

A malicious guest can gain access to sensitive information and escalate privileges on the system.

Mitigation

Update the affected package xen to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

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: before 4.17.4_02-150500.3.30.1

xen-libs-64bit-debuginfo: before 4.17.4_02-150500.3.30.1

xen-tools-xendomains-wait-disk: before 4.17.4_02-150500.3.30.1

xen-libs-32bit: before 4.17.4_02-150500.3.30.1

xen-libs-32bit-debuginfo: before 4.17.4_02-150500.3.30.1

xen-tools-domU-debuginfo: before 4.17.4_02-150500.3.30.1

xen-libs: before 4.17.4_02-150500.3.30.1

xen-tools-domU: before 4.17.4_02-150500.3.30.1

xen-debugsource: before 4.17.4_02-150500.3.30.1

xen-devel: before 4.17.4_02-150500.3.30.1

xen-libs-debuginfo: before 4.17.4_02-150500.3.30.1

xen: before 4.17.4_02-150500.3.30.1

xen-doc-html: before 4.17.4_02-150500.3.30.1

xen-tools: before 4.17.4_02-150500.3.30.1

xen-tools-debuginfo: before 4.17.4_02-150500.3.30.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241295-1/

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.