Bug 2020394 (CVE-2021-30833)

Summary:	CVE-2021-30833 xar: unpacking a maliciously crafted archive may allow an attacker to write arbitrary files
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	i, moceap
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-04 18:37:28 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2020396, 2020395
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-11-04 18:14:20 UTC

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.0.1. Unpacking a maliciously crafted archive may allow an attacker to write arbitrary files.

References:
https://research.nccgroup.com/2021/10/28/technical-advisory-apple-xar-arbitrary-file-write-cve-2021-30833/
https://support.apple.com/en-us/HT212869

Comment 1 Guilherme de Almeida Suckevicz 2021-11-04 18:14:36 UTC

Created xar tracking bugs for this issue:

Affects: epel-8 [bug 2020396]
Affects: fedora-all [bug 2020395]

Comment 2 Product Security DevOps Team 2021-11-04 18:37:26 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.