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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apple | watchOS | >= unspecified, < 7.1 |
| Apple | iOS and iPadOS | >= unspecified, < 14.2 |
| Apple | tvOS | >= unspecified, < 14.2 |
| Apple | macOS | >= unspecified, < 11.0 |
| Apple | macOS | >= unspecified, < 12.11 |
| Apple | macOS | >= unspecified, < 14.0 |
| Apple | macOS | >= unspecified, < 11.5 |
| Apple | macOS | >= unspecified, < 11.5 |
References
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/03/22/1Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
- https://security.gentoo.org/glsa/202104-03Third Party Advisory
- https://support.apple.com/en-us/HT211928Vendor Advisory
- https://support.apple.com/en-us/HT211929Vendor Advisory
- https://support.apple.com/en-us/HT211930Vendor Advisory
- https://support.apple.com/en-us/HT211931Vendor Advisory
- https://support.apple.com/en-us/HT211933Vendor Advisory
- https://support.apple.com/en-us/HT211934Vendor Advisory
- https://support.apple.com/en-us/HT211935Vendor Advisory
- https://www.debian.org/security/2021/dsa-4877Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/03/22/1Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
- https://security.gentoo.org/glsa/202104-03Third Party Advisory
- https://support.apple.com/en-us/HT211928Vendor Advisory
- https://support.apple.com/en-us/HT211929Vendor Advisory
- https://support.apple.com/en-us/HT211930Vendor Advisory
- https://support.apple.com/en-us/HT211931Vendor Advisory
- https://support.apple.com/en-us/HT211933Vendor Advisory
- https://support.apple.com/en-us/HT211934Vendor Advisory
- https://support.apple.com/en-us/HT211935Vendor Advisory
- https://www.debian.org/security/2021/dsa-4877Third Party Advisory
Timeline
- Published
- Dec 8, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified