Bug 1839851 (CVE-2019-20797)

Summary:	CVE-2019-20797 prboom-plus: heap-based buffer overflow in server and client UDP code
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:	gwync, jaromir.capik
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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Clone Of:		Environment:
Last Closed:	2020-05-25 21:15:26 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:	1839852
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2020-05-25 18:51:13 UTC

An issue was discovered in e6y prboom-plus 2.5.1.5. There is a buffer overflow in client and server code responsible for handling received UDP packets, as demonstrated by I_SendPacket or I_SendPacketTo in i_network.c.

References:
https://sourceforge.net/p/prboom-plus/bugs/252/
https://sourceforge.net/p/prboom-plus/bugs/253/
https://logicaltrust.net/blog/2019/10/prboom1.html

Comment 1 Guilherme de Almeida Suckevicz 2020-05-25 18:51:27 UTC

Created prboom-plus tracking bugs for this issue:

Affects: fedora-all [bug 1839852]

Comment 2 Product Security DevOps Team 2020-05-25 21:15:26 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.