Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Icloud | < 11.5 |
| Apple | Itunes | < 12.11 |
| Apple | Safari | < 14.0.1 |
| Apple | Ipados | < 14.2 |
| Apple | Iphone Os | < 14.2 |
| Apple | Macos | < 11.0.1 |
| Apple | Tvos | < 14.2 |
| Apple | Watchos | < 7.1 |
| Fedoraproject | Fedora | 32 |
| Debian | Debian Linux | 10.0 |
| Webkitgtk | Webkitgtk\+ | < 2.30.6 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/03/22/1Mailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- 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 ListThird Party Advisory
FAQ
What is CVE-2020-27918?
CVE-2020-27918 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 1...
How severe is CVE-2020-27918?
CVE-2020-27918 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-27918?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Icloud, Apple Itunes, Apple Safari, Apple Ipados, Apple Iphone Os.