Bug 1646402 (CVE-2018-18407)

Summary:	CVE-2018-18407 tcpreplay: heap-based buffer over-read in csum_replace4 function in incremental_checksum.h
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	bojan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	tcpreplay 4.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:41:44 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:	1646403, 1646404
Bug Blocks:

Description Laura Pardo 2018-11-05 14:16:22 UTC

A heap-based buffer over-read was discovered in the tcpreplay-edit binary of Tcpreplay 4.3.0 beta1, during the incremental checksum operation. The issue gets triggered in the function csum_replace4() in incremental_checksum.h, causing a denial of service. 


References:
https://github.com/appneta/tcpreplay/issues/488 
https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay/README.md#user-content-heap-overflow-in-csum_replace4

Upstream Patch:
https://github.com/appneta/tcpreplay/pull/496

Comment 1 Laura Pardo 2018-11-05 14:16:50 UTC

Created tcpreplay tracking bugs for this issue:

Affects: epel-all [bug 1646403]
Affects: fedora-all [bug 1646404]

Comment 2 Product Security DevOps Team 2019-06-10 10:41:44 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.