CVE-2020-27936

CVSS V2 Medium 6.6 CVSS V3 High 7.1

Description

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. A local user may be able to cause unexpected system termination or read kernel memory.

Overview

CVE ID
CVE-2020-27936

Assigner
product-security@apple.com

Vulnerability Status
Analyzed

Published Version
2021-04-02T18:15:16

Last Modified Date
2021-04-07T15:18:43

Weakness Enumerations

CWE	URL
CWE-125	http://cwe.mitre.org/data/definitions/125.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:o:apple:mac_os_x::::::::	1	OR		11.1.0

CVSS Version 2

Version
2.0

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

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
COMPLETE

Integrity Impact
NONE

Availability Impact
COMPLETE

Base Score
6.6

Severity
MEDIUM

Exploitability Score
3.9

Impact Score
9.2

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.1

Base Severity
HIGH

Exploitability Score
1.8

Impact Score
5.2

References

Reference URL	Reference Tags
https://support.apple.com/en-us/HT212011	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-27936
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27936

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:17:01				Added to TrackCVE
2022-12-06 00:56:17	2021-04-02T18:15Z	2021-04-02T18:15:16	CVE Published Date	updated
2022-12-06 00:56:17		2021-04-07T15:18:43	CVE Modified Date	updated
2022-12-06 00:56:17		Analyzed	Vulnerability Status	updated