CVEs-PoC/2019/CVE-2019-3900.md

CVE-2019-3900

Description

An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.

POC

Reference

• http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
• https://usn.ubuntu.com/4115-1/
• https://usn.ubuntu.com/4117-1/
• https://usn.ubuntu.com/4118-1/
• https://www.oracle.com/security-alerts/cpuApr2021.html

Github

• https://github.com/fkie-cad/nvd-json-data-feeds