Bug 841345 (CVE-2012-3423)

Summary:	CVE-2012-3423 icedtea-web: incorrect handling of not 0-terminated strings
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	adomurad, dbhole, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	icedtea-web 1.1.6, icedtea-web 1.2.1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-07-31 21:57:23 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:	841861, 841862, 844770
Bug Blocks:	841346

Description Tomas Hoger 2012-07-18 18:24:08 UTC

It was discovered that the IcedTea-Web web browser plugin incorrectly assumed that all strings provided by browser are NUL terminated, which is not guaranteed by the NPAPI (Netscape Plugin Application Programming Interface).  When used in a browser that does not NUL terminate NPVariant NPStrings, this could lead to buffer over-read or over-write, resulting in possible information leak, crash, or code execution.

Mozilla browsers currently NUL terminate strings, however recent Chrome versions are known not to provide NUL terminated data.

Related upstream bug reports and commits:
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=518
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=863
http://icedtea.classpath.org/hg/release/icedtea-web-1.2/rev/d7375e2a9076
http://icedtea.classpath.org/hg/release/icedtea-web-1.2/rev/d65bd94e0ba9

Comment 2 Tomas Hoger 2012-07-31 18:01:15 UTC

Lifting embargo.

Comment 3 Tomas Hoger 2012-07-31 18:02:35 UTC

Created icedtea-web tracking bugs for this issue

Affects: fedora-all [bug 844770]

Comment 4 Tomas Hoger 2012-07-31 18:40:31 UTC

Fixed upstream in IcedTea-web 1.1.6 and 1.2.1:
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2012-July/019580.html

Comment 5 errata-xmlrpc 2012-07-31 18:56:12 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:1132 https://rhn.redhat.com/errata/RHSA-2012-1132.html

Comment 6 Fedora Update System 2012-09-21 23:53:07 UTC

icedtea-web-1.3-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2012-09-25 06:19:05 UTC

icedtea-web-1.3-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.