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.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||7.7||Base Metrics:||AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H|
|Access Vector:||Network||Attack Complexity:||Low|
|Privileges Required:||Low||User Interaction:||None|
|Integrity Impact:||None||Availability Impact:||High|
|Oracle Linux version 6 (kernel)||ELSA-2019-3836||2019-11-13|
|Oracle Linux version 7 (kernel)||ELSA-2019-2029||2019-08-13|
|Oracle Linux version 7 (kernel-uek)||ELSA-2020-5845||2020-09-11|
|Oracle Linux version 8 (kernel)||ELSA-2019-3517||2019-11-14|
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team