A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||4.1||Base Metrics:||AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N|
|Access Vector:||Local network||Attack Complexity:||High|
|Privileges Required:||High||User Interaction:||None|
|Integrity Impact:||None||Availability Impact:||None|
|Oracle Linux version 7 (kernel)||ELSA-2021-0856||2021-03-17|
|Oracle Linux version 7 (kernel-uek)||ELSA-2020-5995||2020-12-14|
|Oracle Linux version 7 (kernel-uek)||ELSA-2020-5996||2020-12-15|
|Oracle Linux version 8 (kernel-uek)||ELSA-2020-5996||2020-12-15|
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