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CVE-2021-1799

Date: April 2, 2021

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.

Severity Score

Related Resources (16)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
https://security.gentoo.org/glsa/202104-03
https://access.redhat.com/security/cve/CVE-2021-1799
https://security-tracker.debian.org/tracker/CVE-2021-1799
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
https://nvd.nist.gov/vuln/detail/CVE-2021-1799
https://support.apple.com/en-us/HT212152
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-1799
https://support.apple.com/en-us/HT212146
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
https://support.apple.com/en-us/HT212148
https://support.apple.com/en-us/HT212147
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
https://support.apple.com/en-us/HT212149
https://security.alpinelinux.org/vuln/CVE-2021-1799
https://www.mend.io/vulnerability-database/CVE-2021-1799

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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