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Secunia Security Advisory 28239

Secunia Security Advisory 28239
Posted Dec 28, 2007
Authored by Secunia | Site secunia.com

Secunia Security Advisory - poplix has discovered a vulnerability in PDFlib, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise an application using the library.

tags | advisory, denial of service
SHA-256 | a1c4bc06605cabbdc3ee451a126533317f2a549d02b24e097bba4370d1525b5b

Secunia Security Advisory 28239

Change Mirror Download


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

A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI
has been released. The new version includes many new and advanced
features, which makes it even easier to stay patched.

Download and test it today:
https://psi.secunia.com/

Read more about this new version:
https://psi.secunia.com/?page=changelog

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

TITLE:
PDFlib "pdc_fsearch_fopen()" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA28239

VERIFY ADVISORY:
http://secunia.com/advisories/28239/

CRITICAL:
Less critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
PDFlib 7.x
http://secunia.com/product/17036/

DESCRIPTION:
poplix has discovered a vulnerability in PDFlib, which can be
exploited by malicious people to cause a DoS (Denial of Service) or
potentially compromise an application using the library.

The vulnerability is caused due to a boundary error within the
"pdc_fsearch_fopen()" function. This can be exploited to cause a
stack-based buffer overflow via e.g. a call to "PDF_load_image()"
with an overly long filename parameter.

NOTE: Other functions are also reportedly affected by similar
boundary errors.

The vulnerability is confirmed in version 7.0.2 for Linux on IA-32.
Other versions may also be affected.

SOLUTION:
Do not allow untrusted users to manipulate the parameters passed to
PDFlib functions.

PROVIDED AND/OR DISCOVERED BY:
poplix

ORIGINAL ADVISORY:
http://seclists.org/bugtraq/2007/Dec/0281.html

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

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

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

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

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

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