Bug 1301822 (CVE-2016-1939)

Summary:	CVE-2016-1939 Mozilla: Firefox allows for control characters to be set in cookie names (MFSA 2016-04)
Product:	[Other] Security Response	Reporter:	Huzaifa S. Sidhpurwala <huzaifas>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
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Last Closed:	2016-01-27 04:50:37 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:
Bug Blocks:	1300522

Description Huzaifa S. Sidhpurwala 2016-01-26 04:11:48 UTC

Security researcher musicDespiteEverything previously reported an issue where illegal control characters were stored in as cookie values in violation of RFC6265. While fixing this issue, Mozilla developer Nicholas Hurley realized that the same issue applied to the names of cookies. These characters have now been disallowed in cookie names. This issue could result in incorrect cookie handling by web servers. 


External Reference:

https://www.mozilla.org/security/announce/2016/mfsa2016-04.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges musicDespiteEverything, Nicholas Hurley as the original reporter.

Statement:

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.