SUSE update for openvswitch

1) Insufficient verification of data authenticity

EUVDB-ID: #VU83434

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5366

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to missing verification of data authenticity when handling ICMPv6 Neighbor Advertisement packets between virtual machines. A local user can bypass OpenFlow rules and send otherwise restricted packets.

Mitigation

Update the affected package openvswitch to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP2

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15: SP2

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15: SP2

openSUSE Leap: 15.4

ovn-vtep: before 20.03.1-150200.9.28.1

openvswitch-pki: before 2.13.2-150200.9.28.1

ovn-devel: before 20.03.1-150200.9.28.1

openvswitch-vtep: before 2.13.2-150200.9.28.1

openvswitch-ipsec: before 2.13.2-150200.9.28.1

ovn-central: before 20.03.1-150200.9.28.1

openvswitch-debugsource: before 2.13.2-150200.9.28.1

openvswitch-vtep-debuginfo: before 2.13.2-150200.9.28.1

openvswitch-devel: before 2.13.2-150200.9.28.1

openvswitch: before 2.13.2-150200.9.28.1

openvswitch-test: before 2.13.2-150200.9.28.1

python3-ovs: before 2.13.2-150200.9.28.1

ovn-host: before 20.03.1-150200.9.28.1

ovn: before 20.03.1-150200.9.28.1

openvswitch-test-debuginfo: before 2.13.2-150200.9.28.1

ovn-docker: before 20.03.1-150200.9.28.1

openvswitch-debuginfo: before 2.13.2-150200.9.28.1

libopenvswitch-2_13-0: before 2.13.2-150200.9.28.1

libovn-20_03-0-debuginfo: before 20.03.1-150200.9.28.1

libovn-20_03-0: before 20.03.1-150200.9.28.1

libopenvswitch-2_13-0-debuginfo: before 2.13.2-150200.9.28.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234666-1/

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.