CVE-2021-30939

high

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing a maliciously crafted image may lead to arbitrary code execution.

References

https://support.apple.com/en-us/HT212975

https://support.apple.com/en-us/HT212978

https://support.apple.com/en-us/HT212979

https://support.apple.com/en-us/HT212976

https://support.apple.com/en-us/HT212981

https://support.apple.com/en-us/HT212980

https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1414

https://www.zerodayinitiative.com/advisories/ZDI-22-359/

Details

Source: MITRE

Published: 2021-08-24

Updated: 2022-02-22

Type: CWE-125

Risk Information

CVSS v2

Base Score: 6.8

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

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

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