Vulnerability identifier: #VU66871

Vulnerability 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

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
DPDK
Server applications / Frameworks for developing and running applications

Vendor: DPDK Project

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

DPDK: 21.02 - 21.11.1, 20.02 - 20.11.5, 19.02 - 19.11.12

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External links
http://bugs.dpdk.org/show_bug.cgi?id=1031
http://www.openwall.com/lists/oss-security/2022/08/29/4
http://git.dpdk.org/dpdk/commit/?id=71bd0cc536ad6d84188d947d6f24c17400d8f623
http://git.dpdk.org/dpdk/commit/?id=dc1516e260a0df272b218392faf6db3cbf45e717

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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.