CVE-2019-3900

Public on 2019-07-17
Modified on 2019-09-19
Description
An infinite loop issue was found in the vhost_net kernel module while handling incoming packets in handle_rx(). The infinite loop could occur if one end sends packets faster than the other end can process them. A guest user, maybe a remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.
Severity
Important
CVSS v3 Base Score
6.3
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2019-07-18 17:16 ALAS2-2019-1232
Amazon Linux 1 kernel 2019-07-17 23:18 ALAS-2019-1232

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.3 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD CVSSv2 6.8 AV:N/AC:L/Au:S/C:N/I:N/A:C
NVD CVSSv3 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H