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TITLE:
FreeType Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA48268

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48268/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48268

RELEASE DATE:
2012-03-07

DISCUSS ADVISORY:
http://secunia.com/advisories/48268/#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/48268/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=48268

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

1) An error in src/type1/t1parse.c when processing dictionaries can
be exploited to cause heap-based memory corruption via a specially
crafted Type1 font file.

2) An error in src/bdf/bdflib.c when processing the encoding field
can be exploited to cause heap-based memory corruption via a
specially crafted Bitmap Distribution Format (BDF) font file.

3) An error in src/winfonts/winfnt.c when processing the number of
glyphs can be exploited to cause heap-based memory corruption via a
specially crafted TrueType font file.

4) An error in src/truetype/ttgload.c when handling the zone2 pointer
point can be exploited to cause heap-based memory corruption via a
specially crafted TrueType font file.

5) An error in src/bdf/bdflib.c when processing negative encoding
values can be exploited to cause heap-based memory corruption via a
specially crafted Bitmap Distribution Format (BDF) font file.

Successful exploitation of the vulnerabilities may allow execution of
arbitrary code.

NOTE: Additionally, some errors exist when processing various font
files, which may result in an access violation and crash the
application.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
Reported by Mateusz Jurczyk (j00ru), Google Security Team.

ORIGINAL ADVISORY:
https://savannah.nongnu.org/bugs/?35608
https://savannah.nongnu.org/bugs/?35641
https://savannah.nongnu.org/bugs/?35659
https://savannah.nongnu.org/bugs/?35689
https://savannah.nongnu.org/bugs/?35607

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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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.

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Please Note:
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use those supplied by the vendor.

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