Bug 1861728 (CVE-2020-6070)

Summary:	CVE-2020-6070 f2fs-tools: specially crafted f2fs file can cause a logic flaw and out-of-bounds heap operations, resulting in code execution
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	echevemaster
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:	2020-07-29 13:27:42 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:	1861730, 1861729
Bug Blocks:

Description Marian Rehak 2020-07-29 12:04:59 UTC

An exploitable code execution vulnerability exists in the file system checking functionality of fsck.f2fs 1.12.0. A specially crafted f2fs file can cause a logic flaw and out-of-bounds heap operations, resulting in code execution. An attacker can provide a malicious file to trigger this vulnerability.

External Reference:

https://talosintelligence.com/vulnerability_reports/TALOS-2020-0988

Comment 1 Marian Rehak 2020-07-29 12:06:47 UTC

Created f2fs-tools tracking bugs for this issue:

Affects: epel-7 [bug 1861730]
Affects: fedora-all [bug 1861729]

Comment 2 Product Security DevOps Team 2020-07-29 13:27:42 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.