SUSE update for openvswitch3

1) Out-of-bounds read

EUVDB-ID: #VU86295

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3966

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition when handling Geneve packets. A remote attacker can send specially crafted Geneve packets with HF offload to the system, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation

Update the affected package openvswitch3 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

Server Applications 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

openSUSE Leap: 15.5

ovn3-doc: before 23.03.0-150500.3.16.1

openvswitch3-doc: before 3.1.0-150500.3.16.1

openvswitch3-debugsource: before 3.1.0-150500.3.16.1

openvswitch3: before 3.1.0-150500.3.16.1

ovn3-vtep: before 23.03.0-150500.3.16.1

ovn3-devel: before 23.03.0-150500.3.16.1

libovn-23_03-0: before 23.03.0-150500.3.16.1

ovn3-vtep-debuginfo: before 23.03.0-150500.3.16.1

libopenvswitch-3_1-0: before 3.1.0-150500.3.16.1

ovn3-debuginfo: before 23.03.0-150500.3.16.1

libovn-23_03-0-debuginfo: before 23.03.0-150500.3.16.1

ovn3-central-debuginfo: before 23.03.0-150500.3.16.1

ovn3-docker: before 23.03.0-150500.3.16.1

ovn3-host-debuginfo: before 23.03.0-150500.3.16.1

openvswitch3-debuginfo: before 3.1.0-150500.3.16.1

openvswitch3-test: before 3.1.0-150500.3.16.1

ovn3: before 23.03.0-150500.3.16.1

python3-ovs3: before 3.1.0-150500.3.16.1

openvswitch3-ipsec: before 3.1.0-150500.3.16.1

ovn3-central: before 23.03.0-150500.3.16.1

openvswitch3-devel: before 3.1.0-150500.3.16.1

libopenvswitch-3_1-0-debuginfo: before 3.1.0-150500.3.16.1

openvswitch3-vtep: before 3.1.0-150500.3.16.1

openvswitch3-test-debuginfo: before 3.1.0-150500.3.16.1

openvswitch3-vtep-debuginfo: before 3.1.0-150500.3.16.1

openvswitch3-pki: before 3.1.0-150500.3.16.1

ovn3-host: before 23.03.0-150500.3.16.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20240738-1/

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.