Vulnerability identifier: #VU70471

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Open vSwitch
Hardware solutions / Firmware

Vendor: openvswitch.org

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
Install updates from vendor's website.

Vulnerable software versions

Open vSwitch: 3.0.0 - 3.0.2, 2.17.0 - 2.17.4, 2.4 - 2.4.1, 2.16.0 - 2.16.5, 2.15.0 - 2.15.6, 2.14.0 - 2.14.7, 2.13.0 - 2.13.9, 2.12.0 - 2.12.4, 2.11.0 - 2.11.7, 2.10.0 - 2.10.7, 2.9.0 - 2.9.9, 2.8.0 - 2.8.11, 2.7.0 - 2.7.13, 2.6.0 - 2.6.10, 2.5.0 - 2.5.12

---

External links
http://seclists.org/oss-sec/2022/q4/207
http://mail.openvswitch.org/pipermail/ovs-announce/2022-December/000313.html%3Cbr%20/%3E
http://seclists.org/oss-sec/2022/q4/207

---

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.