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Alma Linux: CVE-2020-28974: Important: kernel security, bug fix, and enhancement update (ALSA-2021-1578)

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Alma Linux: CVE-2020-28974: Important: kernel security, bug fix, and enhancement update (ALSA-2021-1578)

Severity
6
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:C)
Published
11/20/2020
Created
05/05/2022
Added
05/04/2022
Modified
09/15/2022

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)

  • alma-upgrade-kernel-tools-libs-devel

References

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