877629 – (CVE-2012-4207) CVE-2012-4207 Mozilla: Improper character decoding in HZ-GB-2312 charset (MFSA 2012-101)

Bug 877629 (CVE-2012-4207) - CVE-2012-4207 Mozilla: Improper character decoding in HZ-GB-2312 charset (MFSA 2012-101)

Summary: CVE-2012-4207 Mozilla: Improper character decoding in HZ-GB-2312 charset (MFS...

Keywords:
Status:	CLOSED ERRATA
Alias:	CVE-2012-4207
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Red Hat Product Security
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:	873088
TreeView+	depends on / blocked

Reported:	2012-11-17 11:55 UTC by Huzaifa S. Sidhpurwala
Modified:	2023-05-11 21:09 UTC (History)
CC List:	4 users (show)
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed:	2013-01-16 17:00:35 UTC
Embargoed:

Attachments	(Terms of Use)

Links
System	ID	Private	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2012:1482	0	normal	SHIPPED_LIVE	Critical: firefox security update	2012-11-21 03:10:31 UTC
Red Hat Product Errata	RHSA-2012:1483	0	normal	SHIPPED_LIVE	Critical: thunderbird security update	2012-11-21 02:49:59 UTC

Description Huzaifa S. Sidhpurwala 2012-11-17 11:55:11 UTC

Security researcher Masato Kinugawa found when HZ-GB-2312 charset encoding is used for text, the "~" character will destroy another character near the chunk delimiter. This can lead to a cross-site scripting (XSS) attack in pages encoded in HZ-GB-2312. 


External Reference:

http://www.mozilla.org/security/announce/2012/mfsa2012-101.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Masato Kinugawa as the original reporter.

Comment 1 errata-xmlrpc 2012-11-20 21:51:46 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 5

Via RHSA-2012:1483 https://rhn.redhat.com/errata/RHSA-2012-1483.html

Comment 2 errata-xmlrpc 2012-11-20 22:12:21 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:1482 https://rhn.redhat.com/errata/RHSA-2012-1482.html

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