Bug 1888773 (CVE-2020-6105)

Summary: CVE-2020-6105 f2fs-tools: specially crafted f2fs filesystem can cause Information overwrite resulting in a code execution
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: echevemaster
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2020-10-15 20:21:15 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1888775, 1888774    
Bug Blocks:    

Description Guilherme de Almeida Suckevicz 2020-10-15 18:22:11 UTC
An exploitable code execution vulnerability exists in the multiple devices functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can cause Information overwrite resulting in a code execution. An attacker can provide a malicious file to trigger this vulnerability.

Reference:
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1047

Comment 1 Guilherme de Almeida Suckevicz 2020-10-15 18:22:29 UTC
Created f2fs-tools tracking bugs for this issue:

Affects: epel-7 [bug 1888775]
Affects: fedora-all [bug 1888774]

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