PT-2021-13583 · Apple+9 · Safari+16

Ben Seri + 2 · Published 2021-02-01 · Updated 2021-11-09 · CVE-2021-1799

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions: macOS Big Sur versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave tvOS versions prior to 14.4 watchOS versions prior to 7.3 iOS versions prior to 14.4 iPadOS versions prior to 14.4 Safari versions prior to 14.0.3

Description: A port redirection issue was addressed with additional port validation. A malicious website may be able to access restricted ports on arbitrary servers.

Recommendations: For macOS Big Sur, update to version 11.2 or later. For Security Update Catalina, apply Security Update 2021-001 or later. For Security Update Mojave, apply Security Update 2021-001 or later. For tvOS, update to version 14.4 or later. For watchOS, update to version 7.3 or later. For iOS, update to version 14.4 or later. For iPadOS, update to version 14.4 or later. For Safari, update to version 14.0.3 or later.

Fix

Related Identifiers

ALSA-2021:4381

ALT-PU-2021-1527

CESA-2021_4381

CVE-2021-1799

DSA-4877-1

MGASA-2021-0181

OPENSUSE-SU-2021:0637-1

OPENSUSE-SU-2021_0637-1

RHSA-2021:4381

RHSA-2021_4381

RHSA-2025:10364

RLSA-2021:4381

SUSE-SU-2021:1430-1

SUSE-SU-2021:1499-1

SUSE-SU-2021:1990-1

USN-4894-1

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Linuxmint

Apple Macos

Red Hat

Rocky Linux

Safari

Security Update

Suse

Ubuntu

Ios

Ipados

Macos Big Sur

Tvos

Watchos

References · 170

• https://osv.dev/vulnerability/SUSE-SU-2021:1990-1 · Vendor Advisory
• https://security.gentoo.org/glsa/202104-03 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-1765 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1799 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-1799 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-1789 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4877-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1430-1 · Vendor Advisory
• https://support.apple.com/en-us/HT212148 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2021:4381 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4894-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1799 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2021-0181 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2021-4381.html · Vendor Advisory