vulnerability
Oracle Linux: CVE-2021-33655: ELSA-2022-9761: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:M/C:C/I:C/A:C) | Jul 8, 2022 | Sep 7, 2022 | Dec 3, 2025 |
Severity
6
CVSS
(AV:L/AC:L/Au:M/C:C/I:C/A:C)
Published
Jul 8, 2022
Added
Sep 7, 2022
Modified
Dec 3, 2025
Description
When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
An out-of-bounds write flaw was found in the Linux kernel’s framebuffer-based console driver functionality in the way a user triggers ioctl FBIOPUT_VSCREENINFO with malicious data. This flaw allows a local user to crash or potentially escalate their privileges on the system.
An out-of-bounds write flaw was found in the Linux kernel’s framebuffer-based console driver functionality in the way a user triggers ioctl FBIOPUT_VSCREENINFO with malicious data. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Solutions
oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek
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