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CVE-2020-27920

Published: 2 April 2021

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, watchOS 7.1, tvOS 14.2. Processing maliciously crafted web content may lead to code execution.

Notes

AuthorNote
mdeslaur 
no details on this affecting anything other then macOS

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian 		upstream Needs triage

bionic Not vulnerable

focal Not vulnerable

groovy Not vulnerable

hirsute Not vulnerable

trusty Not vulnerable

xenial Not vulnerable

impish Not vulnerable

jammy Not vulnerable

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

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Further reading