Bug 1380235

Summary:	nss: remote DoS triggered by invalid key data
Product:	[Other] Security Response	Reporter:	Jeremy Choi <jechoi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dueno, emaldona, kdudka, kengert, nss-nspr-maint, osoukup, sardella, slawomir
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-11-14 07:26:34 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:
Bug Blocks:	1380228

Description Jeremy Choi 2016-09-29 02:16:09 UTC

It has been reported NSS servers can be remotely crashed by sending some invalid key data.

Based on the stack provided in the bug report, the reason for the crash seems to
be an omitted NULL check, where the implementation assumes that a parameter can
never be NULL (the latest version of NSS still has the same code).

In this particular scenario, the crashing function PK11_SignWithSymKey was
called from ssl3_ComputeRecordMACConstantTime.

Comment 3 Huzaifa S. Sidhpurwala 2016-11-14 07:26:34 UTC


*** This bug has been marked as a duplicate of bug 1383883 ***