CVE-2021-3839: dpdk data_plane_development_kit Out-of-bounds Read

Vulnerability summary

CVE-2021-3839 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in dpdk data_plane_development_kit. EPSS estimates a 1.70% chance of exploitation in the next 30 days, higher than 76.8% of scored vulnerabilities.

Timeline

1. 23-08-2022
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

A flaw was found in the vhost library in DPDK. Function vhost_user_set_inflight_fd() does not validate `msg->payload.inflight.num_queues`, possibly causing out-of-bounds memory read/write. Any software using DPDK vhost library may crash as a result of this vulnerability.

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.