Secunia CSI7
Advisories
Research
Forums
Create Profile
Our Commitment
Database
Search
Advisories by Product
Advisories by Vendor
Terminology
Report Vulnerability
Insecure Library Loading
Moderately critical

FreeType Multiple Vulnerabilities

-

Release Date:  2009-04-16    Last Update:  2010-08-20    Views:  7,290

Secunia Advisory SA34723

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Some vulnerabilities have been reported in FreeType, which can be exploited by malicious people to potentially compromise an application using the library.

1) An integer overflow error within the "cff_charset_compute_cids()" function in cff/cffload.c can be exploited to potentially cause a heap-based buffer overflow via a specially crafted font.

2) Multiple integer overflow errors within validation functions in sfnt/ttcmap.c can be exploited to bypass length validations and potentially cause buffer overflows via specially crafted fonts.

3) An integer overflow error within the "ft_smooth_render_generic()" function in smooth/ftsmooth.c can be exploited to potentially cause a heap-based buffer overflow via a specially crafted font.

Successful exploitation may allow execution of arbitrary code.

4) An error within the handling of nested SEAC calls can be exploited to e.g. cause a crash via specially crafted font files.

The vulnerabilities are reported in version 2.3.9. Other versions may also be affected.


Solution:
Update to version 2.3.10 or later.

Provided and/or discovered by:
1-3) The vendor credits Tavis Ormandy.
4) Disclosed in a GIT commit.

Original Advisory:
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/ChangeLog

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: FreeType Multiple Vulnerabilities

No posts yet

-

You must be logged in to post a comment.



 Products Solutions Customers Partner Resources Company
 
 Corporate
Vulnerability Intelligence Manager (VIM)
Corporate Software Inspector (CSI)
Consumer
Personal Software Inspector (PSI)
Online Software Inspector (OSI)
 Industry
Compliance
Technology
Integration
 Customers
Testimonials
 VARS
MSSP
Technology Partners
References
 Factsheets
Reports
Webinars
Events
 About us
Careers
Memberships
Newsroom


 
© 2002-2014 Secunia ApS - Rued Langgaards Vej 8, 4th floor, DK-2300 Copenhagen, Denmark - +45 7020 5144
Terms & Conditions and Copyright - Privacy - Report Vulnerability