CVE-2021-30851
High
Description
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Apple Safari
PublishedAug 24, 2021
First seenAug 24, 2021
How to fix
Update
- apple safari15.0 or later
- apple ipados15.0 or later
- apple iphone_os15.0 or later
- apple macos12.0.1 or later
- apple tvos15.0 or later
- apple watchos8.0 or later
Vendor advisories
- debian.org/security/2021/dsa-4995
- debian.org/security/2021/dsa-4996
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON5SDVVPVPCAGFPW2GHYATZVZYLPW2L4/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6MGXCX7P5AHWOQ6IRT477UKT7IS4DAD/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple safari | v < 15.0 | 15.0 |
| apple ipados | v < 15.0 | 15.0 |
| apple iphone_os | v < 15.0 | 15.0 |
| apple macos | v < 12.0.1, 12.0.1 | 12.0.1 |
| apple tvos | v < 15.0 | 15.0 |
| apple watchos | v < 8.0 | 8.0 |
| debian debian_linux | 10.0, 11.0 | — |
| fedoraproject fedora | 33, 34 | — |
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