Vulnerability Description
A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 14.0.3 |
| Apple | Ipados | < 14.4.1 |
| Apple | Iphone Os | < 14.4.1 |
| Apple | Macos | < 11.2.3 |
| Apple | Tvos | < 14.5 |
| Apple | Watchos | < 7.3.2 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2021/Apr/55Mailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://support.apple.com/en-us/HT212220Vendor Advisory
- https://support.apple.com/en-us/HT212221Vendor Advisory
- https://support.apple.com/en-us/HT212222Vendor Advisory
- https://support.apple.com/en-us/HT212223Vendor Advisory
- https://support.apple.com/kb/HT212323Vendor Advisory
- https://www.debian.org/security/2021/dsa-4923Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Apr/55Mailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://support.apple.com/en-us/HT212220Vendor Advisory
- https://support.apple.com/en-us/HT212221Vendor Advisory
- https://support.apple.com/en-us/HT212222Vendor Advisory
- https://support.apple.com/en-us/HT212223Vendor Advisory
- https://support.apple.com/kb/HT212323Vendor Advisory
FAQ
What is CVE-2021-1844?
CVE-2021-1844 is a vulnerability with a CVSS score of 8.8 (HIGH). A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur ...
How severe is CVE-2021-1844?
CVE-2021-1844 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-1844?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Safari, Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos.