Fast Datapath for RHEL 8 update for openvswitch2.11

1) Input validation error

EUVDB-ID: #VU50124

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-2019-14818

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

A flaw was found in all dpdk version 17.x.x before 17.11.8, 16.x.x before 16.11.10, 18.x.x before 18.11.4 and 19.x.x before 19.08.1 where a malicious master, or a container with access to vhost_user socket, can send specially crafted VRING_SET_NUM messages, resulting in a memory leak including file descriptors. This flaw could lead to a denial of service condition.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Fast Datapath: 8

openvswitch2.11 (Red Hat package): before 2.11.0-35.el8fdp

CPE2.3

• cpe:2.3:a:red_hat:red_hat_enterprise_linux_fast_datapath:8:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:openvswitch2.11_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://access.redhat.com/errata/RHSA-2020:0171

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.