CVE-2014-9665: Buffer Overflow
First published: Sun Feb 08 2015(Updated: )
The Load_SBit_Png function in sfnt/pngshim.c in FreeType before 2.5.4 does not restrict the rows and pitch values of PNG data, which allows remote attackers to cause a denial of service (integer overflow and heap-based buffer overflow) or possibly have unspecified other impact by embedding a PNG file in a .ttf font file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedora | =20 | |
| Fedora | =21 | |
| Ubuntu | =10.04 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =14.10 | |
| Ubuntu | =15.10 | |
| FreeType | <=2.5.3 | |
| SUSE Linux | =13.1 | |
| SUSE Linux | =13.2 |
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Reference Links
- http://code.google.com/p/google-security-research/issues/detail?id=168
- http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=54abd22891bd51ef8b533b24df53b3019b5cee81
- http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=b3500af717010137046ec4076d1e1c0641e33727
- http://lists.fedoraproject.org/pipermail/package-announce/2015-February/150148.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-February/150162.html
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00091.html
- http://www.securityfocus.com/bid/72986
- http://www.ubuntu.com/usn/USN-2510-1
- http://www.ubuntu.com/usn/USN-2739-1
- https://security.gentoo.org/glsa/201503-05
Frequently Asked Questions
What is the severity of CVE-2014-9665?
CVE-2014-9665 has a severity rating that indicates it could result in a denial of service due to integer overflow and heap-based buffer overflow vulnerabilities.
Which software versions are affected by CVE-2014-9665?
CVE-2014-9665 affects FreeType versions prior to 2.5.4 and several versions of Fedora, Ubuntu, and openSUSE operating systems.
How do I fix CVE-2014-9665?
To fix CVE-2014-9665, you should upgrade your FreeType installation to version 2.5.4 or later.
What types of attacks could exploit CVE-2014-9665?
CVE-2014-9665 could be exploited to launch remote denial-of-service attacks through specially crafted PNG files.
Is there a workaround for CVE-2014-9665?
While the best practice is to upgrade to a safe version, users can limit exposure by disabling PNG processing where possible.
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