Red Hat: CVE-2020-28974: slab-out-of-bounds read in fbcon (Multiple Advisories)
6
(AV:L/AC:L/Au:N/C:P/I:P/A:C)
11/20/2020
05/21/2021
05/21/2021
03/13/2024
Description
A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.
Solution(s)
- redhat-upgrade-kernel
- redhat-upgrade-kernel-rt
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