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.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2021-01-12 22:51 | ALAS-2021-1461 |
Amazon Linux 2 - Core | kernel | 2020-12-08 20:55 | ALAS2-2020-1566 |
Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-01-20 19:50 | ALAS2KERNEL-5.4-2022-018 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 4.1 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N |
NVD | CVSSv2 | 1.9 | AV:L/AC:M/Au:N/C:P/I:N/A:N |
NVD | CVSSv3 | 4.1 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N |