The (1) psp (aka .tub), (2) bmp, (3) pcx, and (4) psd plugins in gimp allow user-assisted remote attackers to cause a denial of service (crash or memory consumption) via crafted image files, as discovered using the fusil fuzzing tool.

A heap-based buffer overflow flaw was found in the way Adobe Photoshop(tm) PSD plug-in of Gimp, the GNU Image Manipulation Program, performed decoding of headers, when loading certain Adobe Photoshop image files. A remote attacker could provide a specially-crafted PSD image file that, when opened in Gimp would lead to PSD plug-in crash or, potentially, arbitrary code execution with the privileges of the user running gimp executable.

This issue was found by Jan Lieskovsky of the Red Hat Security Response Team

A heap-based buffer overflow flaw, leading to invalid free, was found in the way KISS CEL file format plug-in of Gimp, the GNU Image Manipulation Program, performed loading of certain palette files. A remote attacker could provide a specially-crafted KISS palette file that, when opened in Gimp would cause the CEL plug-in to crash or, potentially, execute arbitrary code with the privileges of the user running the gimp executable.

Issue found by: Murray McAllister, Red Hat Security Response Team