A use-after-free flaw was found in the Linux kernel's TTY driver functionality in the way the user triggers the con_font_op function. This flaw allows a local user to crash or escalate their privileges on the system or expose sensitive information (kernel memory).
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 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Amazon Linux | CVSSv2 | 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
NVD | CVSSv3 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
NVD | CVSSv2 | 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |