First published: Tue Aug 24 2021(Updated: )
A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.
Credit: Chijin Zhou ShuiMuYuLin LtdTsinghua wingtecher lab Pangu Chijin Zhou ShuiMuYuLin LtdTsinghua wingtecher lab Pangu via Tianfu Cup Chijin Zhou ShuiMuYuLin LtdTsinghua wingtecher lab Pangu via Tianfu Cup Chijin Zhou ShuiMuYuLin LtdTsinghua wingtecher lab Pangu via Tianfu Cup Chijin Zhou ShuiMuYuLin LtdTsinghua wingtecher lab Pangu via Tianfu Cup cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
Apple Safari | <15.2 | |
Apple iPadOS | <15.2 | |
Apple iPhone OS | <15.2 | |
Apple macOS | >=12.0.0<12.1 | |
Apple tvOS | <15.2 | |
Apple watchOS | <8.3 | |
Fedoraproject Fedora | =34 | |
Debian Debian Linux | =10.0 | |
Debian Debian Linux | =11.0 | |
Fedoraproject Fedora | =35 | |
Apple iOS | <15.2 | 15.2 |
Apple iPadOS | <15.2 | 15.2 |
Apple tvOS | <15.2 | 15.2 |
debian/webkit2gtk | 2.36.4-1~deb10u1 2.38.6-0+deb10u1 2.40.5-1~deb11u1 2.42.1-1~deb11u2 2.40.5-1~deb12u1 2.42.1-1~deb12u1 2.42.1-2 | |
debian/wpewebkit | 2.38.6-1~deb11u1 2.38.6-1 2.42.1-1 |
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(Found alongside the following vulnerabilities)
CVE-2021-30951 is a use after free issue in WebKit that has been addressed with improved memory management.
Apple macOS Monterey, Apple Safari, Apple iOS, Apple iPadOS, Apple watchOS, and Apple tvOS versions up to, but not including, 12.1, 15.2, or 8.3 respectively are affected by CVE-2021-30951.
The severity of CVE-2021-30951 is not explicitly mentioned.
To fix CVE-2021-30951, it is recommended to update to macOS Monterey version 12.1, Safari version 15.2, iOS version 15.2, iPadOS version 15.2, watchOS version 8.3, or tvOS version 15.2.
More information about CVE-2021-30951 can be found on the Apple security updates page at the following URLs: [https://support.apple.com/en-us/HT212978](https://support.apple.com/en-us/HT212978), [https://support.apple.com/en-us/HT212980](https://support.apple.com/en-us/HT212980), [https://support.apple.com/en-us/HT212975](https://support.apple.com/en-us/HT212975).