CVE-2020-27911

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

An integer overflow was addressed through improved input validation. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, tvOS 14.2, iTunes 12.11 for Windows. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

References

http://seclists.org/fulldisclosure/2020/Dec/26

http://seclists.org/fulldisclosure/2020/Dec/32

https://support.apple.com/en-us/HT211928

https://support.apple.com/en-us/HT211929

https://support.apple.com/en-us/HT211930

https://support.apple.com/en-us/HT211931

https://support.apple.com/en-us/HT211933

https://support.apple.com/en-us/HT211935

https://support.apple.com/kb/HT212011

Details

Source: MITRE

Published: 2020-12-08

Updated: 2021-03-10

Type: CWE-190

Risk Information

CVSS v2

Base Score: 9.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (4 total)

IDNameProductFamilySeverity
146215Apple TV < 14.2 Multiple VulnerabilitiesNessusMisc.
high
144453macOS 10.14.x < 10.14.6 Security Update 2020-007 / 10.15.x < 10.15.7 Security Update 2020-001 / macOS 11.x < 11.1 (HT212011)NessusMacOS X Local Security Checks
high
143115macOS 11.0.x < 11.0.1NessusMacOS X Local Security Checks
high
142881Apple iOS < 14.2 Multiple VulnerabilitiesNessusMobile Devices
high