CVE-2022-2639

CVSS V2 None CVSS V3 High 7.8

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.

Overview

CVE ID
CVE-2022-2639

Assigner
secalert@redhat.com

Vulnerability Status
Analyzed

Published Version
2022-09-01T21:15:09

Last Modified Date
2023-01-20T13:05:07

Weakness Enumerations

CWE	URL
CWE-191	http://cwe.mitre.org/data/definitions/191.html
CWE-192	http://cwe.mitre.org/data/definitions/192.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
cpe:2.3:o:linux:linux_kernel:5.18:-::::::	1	OR
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*	1	OR

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.8

Base Severity
HIGH

Exploitability Score
1.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2084479
https://github.com/torvalds/linux/commit/cefa91b2332d7009bc0be5d951d6cbbf349f90f8

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-2639
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2639

History

Created	Old Value	New Value	Data Type	Notes
2022-09-01 22:00:08				Added to TrackCVE
2023-01-20 13:13:21		2023-01-20T13:05:07	CVE Modified Date	updated
2023-01-20 13:13:21	Undergoing Analysis	Analyzed	Vulnerability Status	updated
2023-01-20 13:13:21			Weakness Enumeration	update