Bug 1191090 (CVE-2014-9667)

Summary:	CVE-2014-9667 freetype: integer overflow in tt_face_load_font_dir() leading to out-of-bounds read
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	behdad, fonts-bugs, kevin, mkasik
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	freetype 2.5.4	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-03-18 07:40:40 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:	1191099, 1197737, 1197738, 1197739, 1197740
Bug Blocks:	1191102

Description Vasyl Kaigorodov 2015-02-10 12:51:51 UTC

Common Vulnerabilities and Exposures assigned CVE-2014-9667 to the following issue:

sfnt/ttload.c in FreeType before 2.5.4 proceeds with offset+length calculations
without restricting the values, which allows remote attackers to cause a denial
of service (integer overflow and out-of-bounds read) or possibly have
unspecified other impact via a crafted SFNT table.

http://code.google.com/p/google-security-research/issues/detail?id=166
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=677ddf4f1dc1b36cef7c7ddd59a14c508f4b1891

Comment 1 Vasyl Kaigorodov 2015-02-10 12:57:17 UTC

Created freetype tracking bugs for this issue:

Affects: fedora-all [bug 1191099]

Comment 2 Fedora Update System 2015-02-19 18:00:57 UTC

freetype-2.5.3-15.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2015-02-20 08:30:57 UTC

freetype-2.5.0-9.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Tomas Hoger 2015-02-23 10:29:52 UTC

Upstream bug is:
https://savannah.nongnu.org/bugs/?43590

Issue was fixed upstream in 2.5.4.

The issue is an integer overflow flaw in a check protecting against out-of-bounds reads, making it possible to bypass check.  Crashing freetype using a specially-crafted font file should be possible because of this.

Comment 7 errata-xmlrpc 2015-03-17 17:59:06 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2015:0696 https://rhn.redhat.com/errata/RHSA-2015-0696.html