Vulnerability identifier: #VU63625

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3839

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

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

Vendor: DPDK Project

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to vhost_user_set_inflight_fd() function does not validate msg->payload.inflight.num_queues. A local user can trigger out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DPDK: 21.02 - 21.11.1, 20.02 - 20.11.5, 2.2.0, 2.1.0, 2.0.0, 19.02 - 19.11.12, 18.02 - 18.11.11, 17.02 - 17.11.10, 16.04 - 16.11.11, 1.8.0, 1.7.1

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=2025882

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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