Bug 827833 (CVE-2012-0441)

Summary:	CVE-2012-0441 nss: NSS parsing errors with zero length items
Product:	[Other] Security Response	Reporter:	Huzaifa S. Sidhpurwala <huzaifas>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	amarecek, emaldona, nparmar, 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:	---
Clone Of:		Environment:
Last Closed:	2012-07-18 07:26:51 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:	830304, 833480, 834491, 834492, 834493, 835017
Bug Blocks:	827834

Description Huzaifa S. Sidhpurwala 2012-06-03 08:48:28 UTC

Security researcher Kaspar Brand found a flaw in how the Network Security Services (NSS) ASN.1 decoder handles zero length items. Effects of this issue depend on the field. One known symptom is an unexploitable crash in handling OCSP responses. NSS also mishandles zero-length basic constraints, assuming default values for some types that should been rejected as malformed.

Reference:
http://www.mozilla.org/security/announce/2012/mfsa2012-39.html

Comment 2 Elio Maldonado Batiz 2012-06-19 01:06:44 UTC

From https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2012-0441 this was addressed on nss-3.13.4.

Comment 4 Huzaifa S. Sidhpurwala 2012-06-22 05:11:03 UTC

This issue does not affect the version of nss as shipped with Fedora 16 and 17, since its already updated to 3.13.4

Comment 7 errata-xmlrpc 2012-07-17 18:17:53 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:1091 https://rhn.redhat.com/errata/RHSA-2012-1091.html

Comment 8 errata-xmlrpc 2012-07-17 18:18:45 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2012:1090 https://rhn.redhat.com/errata/RHSA-2012-1090.html