ALT-PU-2020-3256-2

Package update kernel-image-un-def in branch sisyphus

Version5.9.7-alt1

Published2026-02-04

Max severityMEDIUM

Severity:

Closed issues (2)

MEDIUM5.0

Уязвимость функции KD_FONT_OP_COPY драйвера fbcon ядра операционных систем Linux, позволяющая нарушителю повысить свои привилегии или вызвать отказ в обслуживании

Published: 2020-12-03Modified: 2024-09-13

CVSS 3.xMEDIUM 5.0

CVSS:3.x/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H

CVSS 2.0MEDIUM 6.1

CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:C

References

CVE-2020-28974

MEDIUM5.0

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.

Published: 2020-11-20Modified: 2024-11-21

CVSS 2.0MEDIUM 6.1

CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:C

CVSS 3.xMEDIUM 5.0

CVSS:3.x/CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H

References