vulnerability
Oracle Linux: CVE-2020-28974: ELSA-2021-9001: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:M/C:P/I:P/A:C) | 2020-11-09 | 2020-12-15 | 2025-01-24 |
Severity
5
CVSS
(AV:L/AC:L/Au:M/C:P/I:P/A:C)
Published
2020-11-09
Added
2020-12-15
Modified
2025-01-24
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.
An out-of-bounds (OOB) SLAB memory access flaw was found in the Linux kernel's fbcon driver module. A bounds check failure allows a local attacker with special user privileges to gain access to out-of-bounds memory, leading to a system crash or leaking of internal kernel information. The highest threat from this vulnerability is to system availability.
An out-of-bounds (OOB) SLAB memory access flaw was found in the Linux kernel's fbcon driver module. A bounds check failure allows a local attacker with special user privileges to gain access to out-of-bounds memory, leading to a system crash or leaking of internal kernel information. The highest threat from this vulnerability is to system availability.
Solution(s)
oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek
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