Out-of-bounds read in Open vSwitch - CVE-2022-4337

 

Out-of-bounds read in Open vSwitch - CVE-2022-4337

Published: December 21, 2022


Vulnerability identifier: #VU70471
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-4337
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: openvswitch.org
Affected software:
Open vSwitch

Detailed vulnerability 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.


How to mitigate CVE-2022-4337

Install updates from vendor's website.

Sources