CVE-2020-27918
High
Description
A use after free issue was addressed with improved memory management. 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, Safari 14.0.1, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Apple Icloud
PublishedDec 8, 2020
First seenDec 8, 2020
How to fix
Update
- apple icloud11.5 or later
- apple itunes12.11 or later
- apple safari14.0.1 or later
- apple ipados14.2 or later
- apple iphone_os14.2 or later
- apple macos11.0.1 or later
- apple tvos14.2 or later
- apple watchos7.1 or later
- webkitgtk webkitgtk\+2.30.6 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/
- debian.org/security/2021/dsa-4877
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
- security.gentoo.org/glsa/202104-03
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple icloud | v < 11.5 | 11.5 |
| apple itunes | v < 12.11 | 12.11 |
| apple safari | v < 14.0.1 | 14.0.1 |
| apple ipados | v < 14.2 | 14.2 |
| apple iphone_os | v < 14.2 | 14.2 |
| apple macos | v < 11.0.1 | 11.0.1 |
| apple tvos | v < 14.2 | 14.2 |
| apple watchos | v < 7.1 | 7.1 |
| fedoraproject fedora | 32, 33, 34 | — |
| debian debian_linux | 10.0 | — |
| webkitgtk webkitgtk\+ | v < 2.30.6 | 2.30.6 |
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