CVE Vulnerabilities

CVE-2020-9859

Double Free

Published: Jun 05, 2020 | Modified: Oct 23, 2025
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu
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A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6, watchOS 6.2.6. An application may be able to execute arbitrary code with kernel privileges.

Weakness

The product calls free() twice on the same memory address.

Affected Software

NameVendorStart VersionEnd Version
IpadosApple*13.5.1 (excluding)
Iphone_osApple*13.5.1 (excluding)
Mac_os_xApple*10.15.5 (excluding)
TvosApple*13.4.6 (excluding)
WatchosApple*6.2.6 (excluding)

Potential Mitigations

References