Bug 1191081 (CVE-2014-9659)

Summary: CVE-2014-9659 freetype: stack-based buffer overflow in cff/cf2intrp.c in the CFF CharString interpreter
Product: [Other] Security Response Reporter: Vasyl Kaigorodov <vkaigoro>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: behdad, fonts-bugs, jrusnack, 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: 2015-02-19 22:04:40 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1191099    
Bug Blocks: 1191102    

Description Vasyl Kaigorodov 2015-02-10 12:50:27 UTC
Common Vulnerabilities and Exposures assigned CVE-2014-9659 to the following issue:

cff/cf2intrp.c in the CFF CharString interpreter in FreeType before 2.5.4
proceeds with additional hints after the hint mask has been computed, which
allows remote attackers to execute arbitrary code or cause a denial of service
(stack-based buffer overflow) via a crafted OpenType font.  NOTE: this
vulnerability exists because of an incomplete fix for CVE-2014-2240.

http://code.google.com/p/google-security-research/issues/detail?id=190
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=2cdc4562f873237f1c77d43540537c7a721d3fd8

Comment 1 Vasyl Kaigorodov 2015-02-10 12:55:42 UTC
Created freetype tracking bugs for this issue:

Affects: fedora-all [bug 1191099]

Comment 2 Fedora Update System 2015-02-19 18:00:49 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 Tomas Hoger 2015-02-19 22:04:40 UTC
Upstream bug is:
https://savannah.nongnu.org/bugs/?43661

Issue was fixed upstream in 2.5.4.

Report indicates this is issue is an incomplete fix / variant of the CVE-2014-2240 issue (bug 1074646).  It affects code which was introduced in upstream version 2.4.12, and enabled by default in 2.5.  The affected code is not in freetype packages in Red Hat Enterprise Linux 7 and earlier.

Statement:

Not vulnerable. This issue did not affect the versions of freetype as shipped with Red Hat Enterprise Linux 5, 6 and 7.