----------------------------------------------------------------------


Get tweets from Secunia


http://twitter.com/secunia


----------------------------------------------------------------------

TITLE:
FreeType2 Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA40816

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40816/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40816

RELEASE DATE:
2010-08-07

DISCUSS ADVISORY:
http://secunia.com/advisories/40816/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/40816/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=40816

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Some vulnerabilities have been reported in FreeType2, which can be
exploited by malicious people to cause a DoS (Denial of Service) or
compromise an application using the library.

1) Two vulnerabilities are caused due to errors when processing
certain opcodes of Compact Font Format (CFF) fonts, which can be
exploited to cause a stack corruption by tricking a user into
processing a specially crafted CFF font in an application using the
library.

This is related to:
SA40807

2) A boundary error exists within the "Mac_Read_POST_Resource()"
function in src/base/ftobjs.c when processing certain Adobe Type 1
Mac Font File (LWFN) fonts, which can be exploited to cause a
heap-based buffer overflow by tricking a user into processing a
specially crafted LWFN font in an application using the library.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
1) comex, disclosed via jailbreakme.com. 
Additional information provided by Braden Thomas, Apple Product
Security Team.
2) Robert Swiecki

ORIGINAL ADVISORY:
1)
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=018f5c27813dd7eef4648fe254632ecea0c85a50
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=11d65e8a1f1f14e56148fd991965424d9bd1cdbc
2)
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=81f3472c0ba7b8f6466e2e214fa8c1c17fade975
https://savannah.nongnu.org/bugs/?30658

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------