Red Hat Enterprise Linux Fast Datapath 8 update for openvswitch2.13



Published: 2022-09-08
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-2132
CWE-ID CWE-399
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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openvswitch2.13 (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Enterprise Linux Fast Datapath
Client/Desktop applications / File managers, FTP clients

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

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

openvswitch2.13 (Red Hat package): 2.13.0-71.el8fdp - 2.13.0-180.el8fdp

Red Hat Enterprise Linux Fast Datapath: 8

External links

http://access.redhat.com/errata/RHSA-2022:6384


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.



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