Bug 1888776 (CVE-2020-6106)

Summary:	CVE-2020-6106 f2fs-tools: specially crafted filesystem can be used to disclose information
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:	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
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Clone Of:		Environment:
Last Closed:	2020-10-15 20:21:17 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1888778, 1888777
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2020-10-15 18:24:05 UTC

An exploitable information disclosure vulnerability exists in the init_node_manager functionality of F2fs-Tools F2fs.Fsck 1.12 and 1.13. A specially crafted filesystem can be used to disclose information. An attacker can provide a malicious file to trigger this vulnerability.

Reference:
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1048

Comment 1 Guilherme de Almeida Suckevicz 2020-10-15 18:24:24 UTC

Created f2fs-tools tracking bugs for this issue:

Affects: epel-7 [bug 1888778]
Affects: fedora-all [bug 1888777]

Comment 2 Product Security DevOps Team 2020-10-15 20:21:17 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.