CVE-2022-0185

CVE Details

Release Date:	2022-02-11
Impact:	None	What is this?

Description

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

See more information about CVE-2022-0185 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	8.4
Vector String:	CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9028	2022-01-19
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9147	2022-02-14
Oracle Linux version 7 (kernel-uek-container)	ELSA-2022-9029	2022-01-19
Oracle Linux version 7 (kernel-uek-container)	ELSA-2022-9148	2022-02-14
Oracle Linux version 8 (kernel)	ELSA-2022-0188	2022-01-21
Oracle Linux version 8 (kernel-uek)	ELSA-2022-9028	2022-01-19
Oracle Linux version 8 (kernel-uek)	ELSA-2022-9147	2022-02-14
Oracle Linux version 8 (kernel-uek-container)	ELSA-2022-9029	2022-01-19
Oracle Linux version 8 (kernel-uek-container)	ELSA-2022-9148	2022-02-14