Bug 1191090 (CVE-2014-9667) - CVE-2014-9667 freetype: integer overflow in tt_face_load_font_dir() leading to out-of-bounds read
Summary: CVE-2014-9667 freetype: integer overflow in tt_face_load_font_dir() leading t...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2014-9667
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1191099 1197737 1197738 1197739 1197740
Blocks: 1191102
TreeView+ depends on / blocked
 
Reported: 2015-02-10 12:51 UTC by Vasyl Kaigorodov
Modified: 2019-09-29 13:28 UTC (History)
4 users (show)

Fixed In Version: freetype 2.5.4
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-03-18 07:40:40 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:0696 0 normal SHIPPED_LIVE Important: freetype security update 2015-03-17 21:58:07 UTC

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
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