CVE-2022-2639

CVE Details

Release Date:	2022-09-01
Impact:	None	What is this?

Description

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

See more information about CVE-2022-2639 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:	7.8
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2022-10065	2022-12-06
Oracle Linux version 7 (kernel-uek)	ELSA-2022-10065	2022-12-06
Oracle Linux version 8 (kernel)	ELSA-2022-7683	2022-11-15
Oracle Linux version 9 (kernel)	ELSA-2022-8267	2022-11-22
Oracle VM version 3 (kernel-uek)	OVMSA-2022-0031	2022-12-07