SUSE update for openvswitch

Published: 2023-05-20

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-4337 CVE-2022-4338
CWE-ID	CWE-125 CWE-191
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Package Hub 15 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 Desktop 15 Operating systems & Components / Operating system SUSE Linux Enterprise Micro Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system python2-ovs-debuginfo Operating systems & Components / Operating system package or component python2-ovs Operating systems & Components / Operating system package or component openvswitch-debugsource Operating systems & Components / Operating system package or component openvswitch-debuginfo Operating systems & Components / Operating system package or component libopenvswitch-2_11-0-debuginfo Operating systems & Components / Operating system package or component openvswitch-ovn-common-debuginfo Operating systems & Components / Operating system package or component openvswitch-ovn-central Operating systems & Components / Operating system package or component openvswitch-ovn-host Operating systems & Components / Operating system package or component openvswitch-ovn-common Operating systems & Components / Operating system package or component openvswitch-ovn-central-debuginfo Operating systems & Components / Operating system package or component python3-ovs-debuginfo Operating systems & Components / Operating system package or component openvswitch-ovn-docker Operating systems & Components / Operating system package or component openvswitch-ovn-vtep Operating systems & Components / Operating system package or component libopenvswitch-2_11-0 Operating systems & Components / Operating system package or component openvswitch-ovn-host-debuginfo Operating systems & Components / Operating system package or component openvswitch-ovn-vtep-debuginfo Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU70471

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-4337

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when parsing Auto Attach TLV. A remote attacker can send specially crafted LLDP messages to the affected system, trigger an out-of-bounds read error and read contents of memory on the system of perform a denial of service (DoS) attack.

Mitigation

Update the affected package openvswitch to the latest version.

Vulnerable software versions

SUSE Package Hub 15: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5

SUSE Linux Enterprise Server 15: SP4 - SP5

SUSE Linux Enterprise Real Time 15: SP4 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

python2-ovs-debuginfo: before 2.11.5-150100.3.21.1

python2-ovs: before 2.11.5-150100.3.21.1

openvswitch-debugsource: before 2.11.5-150100.3.21.1

openvswitch-debuginfo: before 2.11.5-150100.3.21.1

libopenvswitch-2_11-0-debuginfo: before 2.11.5-150100.3.21.1

openvswitch-ovn-common-debuginfo: before 2.11.5-150100.3.21.1

openvswitch-ovn-central: before 2.11.5-150100.3.21.1

openvswitch-ovn-host: before 2.11.5-150100.3.21.1

openvswitch-ovn-common: before 2.11.5-150100.3.21.1

openvswitch-ovn-central-debuginfo: before 2.11.5-150100.3.21.1

python3-ovs-debuginfo: before 2.11.5-150100.3.21.1

openvswitch-ovn-docker: before 2.11.5-150100.3.21.1

openvswitch-ovn-vtep: before 2.11.5-150100.3.21.1

libopenvswitch-2_11-0: before 2.11.5-150100.3.21.1

openvswitch-ovn-host-debuginfo: before 2.11.5-150100.3.21.1

openvswitch-ovn-vtep-debuginfo: before 2.11.5-150100.3.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232255-1/

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.

2) Integer underflow

EUVDB-ID: #VU70459

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-4338

CWE-ID: CWE-191 - Integer underflow

Exploit availability: No

Description

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

The vulnerability exists due to integer underflow when parsing Auto Attach TLV. A remote attacker can send specially crafted LLDP messages to the affected system, trigger an integer underflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, by default interfaces are not configured to process LLDP messages.

Mitigation

Update the affected package openvswitch to the latest version.

Vulnerable software versions

SUSE Package Hub 15: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5

SUSE Linux Enterprise Server 15: SP4 - SP5

SUSE Linux Enterprise Real Time 15: SP4 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

python2-ovs-debuginfo: before 2.11.5-150100.3.21.1

python2-ovs: before 2.11.5-150100.3.21.1

openvswitch-debugsource: before 2.11.5-150100.3.21.1

openvswitch-debuginfo: before 2.11.5-150100.3.21.1

libopenvswitch-2_11-0-debuginfo: before 2.11.5-150100.3.21.1

openvswitch-ovn-common-debuginfo: before 2.11.5-150100.3.21.1

openvswitch-ovn-central: before 2.11.5-150100.3.21.1

openvswitch-ovn-host: before 2.11.5-150100.3.21.1

openvswitch-ovn-common: before 2.11.5-150100.3.21.1

openvswitch-ovn-central-debuginfo: before 2.11.5-150100.3.21.1

python3-ovs-debuginfo: before 2.11.5-150100.3.21.1

openvswitch-ovn-docker: before 2.11.5-150100.3.21.1

openvswitch-ovn-vtep: before 2.11.5-150100.3.21.1

libopenvswitch-2_11-0: before 2.11.5-150100.3.21.1

openvswitch-ovn-host-debuginfo: before 2.11.5-150100.3.21.1

openvswitch-ovn-vtep-debuginfo: before 2.11.5-150100.3.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232255-1/

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.