Bug 1852412 (CVE-2020-14983)

Summary:	CVE-2020-14983 chocolate-doom: malicious user can overwrite the server's stack leads to DoS
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	metherid
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2020-06-30 11:20:27 UTC	Type:	---
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Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1852413
Bug Blocks:

Description Dhananjay Arunesh 2020-06-30 11:18:49 UTC

The server in Chocolate Doom 3.0.0 and Crispy Doom 5.8.0 doesn't validate the user-controlled num_players value, leading to a buffer overflow. A malicious user can overwrite the server's stack.

References:
https://github.com/chocolate-doom/chocolate-doom/issues/1293

Comment 1 Dhananjay Arunesh 2020-06-30 11:19:35 UTC

Created chocolate-doom tracking bugs for this issue:

Affects: fedora-all [bug 1852413]

Comment 2 Product Security DevOps Team 2020-06-30 11:20:27 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.