OSVDB ID: 8326

Title: libpng png_handle_tRNS Remote Overflow

Info

Disclosure
Aug 04, 2004

Discovery
Unknown

Dates

Exploit
Aug 04, 2004

Solution
Unknown

Description

 A remote overflow exists in libpng. The library function png_handle_tRNS fails to perform a length check on PNG images resulting in a buffer overflow. With a specially crafted PNG file, an attacker can cause the execution of code resulting in a loss of integrity.

Classification

 Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Public
Disclosure: OSVDB Verified

Solution

 Upgrade to version 1.2.6 release candidate 1 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds. Users of the older 1.0 series should upgrade to libpng-1.0.16 release candidate 1 or higher.

Products

PNG Development Group

libpng

 1.0.15
1.2.5

ImageMagick Studio LLC

ImageMagick

 6.0.0-2

GraphicsMagick Group

GraphicsMagick

 1.1.2

Microsoft Corporation

MSN Messenger

 5.0
6.1
6.2

References

Credit
  • Chris Evans - chrisscary.beasts.org -


Direct URL: http://osvdb.org/8326