CVE-2021-1799

A port redirection issue was addressed with additional port validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. A malicious website may be able to access restricted ports on arbitrary servers.

Published: Apr 2, 2021
Updated: Apr 14, 2023
CVE: CVE-2021-1799
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 6.5
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS v2:

Severity: Low
Score: 4.3
AV:N/AC:M/Au:N/C:N/I:P/A:N

No CWE or OWASP classifications available.

Affected Software
References

Software	From	Fixed in
apple / iphone_os	-	14.4
apple / tvos	-	14.4
apple / watchos	-	7.3
apple / ipad_os	-	14.4
apple / safari	-	14.0.3
apple / macos	11.0.1	11.2
fedoraproject / fedora	32	32.x
fedoraproject / fedora	33	33.x
webkitgtk / webkitgtk	-	2.30.6

https://lists.fedoraproject.org/archives/list/[email protected]/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
https://lists.fedoraproject.org/archives/list/[email protected]/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
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/202104-03
https://support.apple.com/en-us/HT212146
https://support.apple.com/en-us/HT212147
https://support.apple.com/en-us/HT212148
https://support.apple.com/en-us/HT212149
https://support.apple.com/en-us/HT212152

Vulnerability Database

289,599

CVE-2021-1799