Red Hat Enterprise Linux Fast Datapath 9 update for openvswitch2.17

1) Resource management error

EUVDB-ID: #VU66871

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2132

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources within the copy_desc_to_mbuf() function when processing Vhost header. A remote guest can send a packet with the Vhost header crossing more than two descriptors and force application to allocate all available mbufs, causing a denial of service condition for the other guest running on the hypervisor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Fast Datapath: 9

openvswitch2.17 (Red Hat package): before 2.17.0-32.3.el9fdp

CPE2.3

• cpe:2.3:a:red_hat:red_hat_enterprise_linux_fast_datapath:9:*:*:*:*:*:*:

External links

http://access.redhat.com/errata/RHSA-2022:6386

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.