Bug 1496657 – CVE-2017-7825 Mozilla: OS X fonts render some Tibetan and Arabic unicode characters as spaces (MFSA 2017-22)

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Bug 1496657 - (CVE-2017-7825) CVE-2017-7825 Mozilla: OS X fonts render some Tibetan and Arabic unicode characters as spaces (MFSA 2017-22)

Summary:	CVE-2017-7825 Mozilla: OS X fonts render some Tibetan and Arabic unicode char...

Status:	CLOSED ERRATA

Aliases:	CVE-2017-7825

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=moderate,public=20170928,repor...
Keywords:	Security

Depends On:
Blocks:	1494903
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Reported:	2017-09-28 00:28 EDT by Doran Moppert
Modified:	2017-10-11 19:52 EDT (History)
CC List:	5 users (show)

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Last Closed:	2017-09-28 15:04:00 EDT
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Description Doran Moppert 2017-09-28 00:28:43 EDT

Several fonts on OS X display some Tibetan and Arabic characters as whitespace. When used in the addressbar as part of an IDN this can be used for domain name spoofing attacks. 

*Note: This attack only affects OS X operating systems. Other operating systems are unaffected.* 


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/#CVE-2017-7825

Comment 2 Doran Moppert 2017-09-28 01:05:11 EDT

Acknowledgments:

Name: the Mozilla project
Upstream: Khalil Zhani

Comment 4 Tomas Hoger 2017-09-28 15:02:46 EDT

Public now via upstream advisories:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/
https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/

Comment 5 Tomas Hoger 2017-09-28 15:04:00 EDT

In reply to comment 0:
> *Note: This attack only affects OS X operating systems. Other operating
> systems are unaffected.* 

Linux belongs to the unaffected category.

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