SUSE update for openvswitch

1) Input validation error

EUVDB-ID: #VU74579

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-1668

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when processing IP packets. A remote attacker can send specially crafted IP packets with "ip proto" set to "0" and perform a denial of service (DoS) attack.

Successful exploitation of the vulnerability requires that flow rules contain 'set' actions on other fields in the IP protocol header.

Mitigation

Update the affected package openvswitch to the latest version.

Vulnerable software versions

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

Legacy Module: 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

Server Applications Module: 15-SP4

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise High Performance Computing 15: SP4

openSUSE Leap: 15.4 - 15.5

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

ovn-doc: before 20.06.2-150400.24.9.1

openvswitch-doc: before 2.14.2-150400.24.9.1

openvswitch-test-debuginfo: before 2.14.2-150400.24.9.1

libovn-20_06-0-debuginfo: before 20.06.2-150400.24.9.1

ovn: before 20.06.2-150400.24.9.1

openvswitch-debugsource: before 2.14.2-150400.24.9.1

ovn-central-debuginfo: before 20.06.2-150400.24.9.1

ovn-docker: before 20.06.2-150400.24.9.1

ovn-debuginfo: before 20.06.2-150400.24.9.1

ovn-host-debuginfo: before 20.06.2-150400.24.9.1

libovn-20_06-0: before 20.06.2-150400.24.9.1

openvswitch-debuginfo: before 2.14.2-150400.24.9.1

openvswitch-vtep-debuginfo: before 2.14.2-150400.24.9.1

openvswitch: before 2.14.2-150400.24.9.1

ovn-central: before 20.06.2-150400.24.9.1

ovn-host: before 20.06.2-150400.24.9.1

openvswitch-devel: before 2.14.2-150400.24.9.1

openvswitch-ipsec: before 2.14.2-150400.24.9.1

openvswitch-test: before 2.14.2-150400.24.9.1

openvswitch-vtep: before 2.14.2-150400.24.9.1

libopenvswitch-2_14-0: before 2.14.2-150400.24.9.1

ovn-vtep: before 20.06.2-150400.24.9.1

libopenvswitch-2_14-0-debuginfo: before 2.14.2-150400.24.9.1

ovn-vtep-debuginfo: before 20.06.2-150400.24.9.1

ovn-devel: before 20.06.2-150400.24.9.1

python3-ovs: before 2.14.2-150400.24.9.1

openvswitch-pki: before 2.14.2-150400.24.9.1

CPE2.3

• cpe:2.3:o:suse:suse_package_hub_15:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_package_hub_15:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:legacy_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:server_applications_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:ovn-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-test-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libovn-20_06-0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-central-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-docker:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-host-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libovn-20_06-0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-vtep-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-central:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-host:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-ipsec:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-test:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-vtep:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libopenvswitch-2_14-0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-vtep:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libopenvswitch-2_14-0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-vtep-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ovn-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python3-ovs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:openvswitch-pki:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232296-1/

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.