Bug 1614045 (CVE-2018-14938)

Summary:	CVE-2018-14938 tcpflow: integer overflow vulnerability in wifipacp.cpp
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jtfas90, terje.rosten
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:	2019-06-10 10:35:32 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:	1614046, 1614047
Bug Blocks:

Description Laura Pardo 2018-08-08 21:46:26 UTC

An issue was discovered in wifipcap/wifipcap.cpp in TCPFLOW through 1.5.0-alpha. There is an integer overflow in the function handle_prism during caplen processing. If the caplen is less than 144, one can cause an integer overflow in the function handle_80211, which will result in an out-of-bounds read and may allow access to sensitive memory (or a denial of service). 


References:
https://github.com/simsong/tcpflow/issues/182

Upstream Patch:
https://github.com/simsong/tcpflow/commit/a4e1cd14eb5ccc51ed271b65b3420f7d692c40eb

Comment 1 Laura Pardo 2018-08-08 21:46:55 UTC

Created tcpflow tracking bugs for this issue:

Affects: epel-7 [bug 1614047]
Affects: fedora-all [bug 1614046]

Comment 2 Product Security DevOps Team 2019-06-10 10:35:32 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.