CVE-2021-38206

CVSS V2 Low 2.1 CVSS V3 Medium 5.5

Description

The mac80211 subsystem in the Linux kernel before 5.12.13, when a device supporting only 5 GHz is used, allows attackers to cause a denial of service (NULL pointer dereference in the radiotap parser) by injecting a frame with 802.11a rates.

Overview

CVE ID
CVE-2021-38206

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2021-08-08T20:15:07

Last Modified Date
2021-08-12T13:33:43

Weakness Enumerations

CWE	URL
CWE-476	http://cwe.mitre.org/data/definitions/476.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:o:linux:linux_kernel::::::::	1	OR		5.12.13

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:N/I:N/A:P

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
2.1

Severity
LOW

Exploitability Score
3.9

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
5.5

Base Severity
MEDIUM

Exploitability Score
1.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://github.com/torvalds/linux/commit/bddc0c411a45d3718ac535a070f349be8eca8d48	Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13	Mailing List Patch Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-38206
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38206

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:57:35				Added to TrackCVE
2022-12-05 07:41:33	2021-08-08T20:15Z	2021-08-08T20:15:07	CVE Published Date	updated
2022-12-05 07:41:33		2021-08-12T13:33:43	CVE Modified Date	updated
2022-12-05 07:41:33		Analyzed	Vulnerability Status	updated