The load function in the XPM loader for imlib2 1.4.2, and possibly other versions, allows attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted XPM file that triggers a "pointer arithmetic error" and a heap-based buffer overflow, a different vulnerability than CVE-2008-2426.

Multiple stack-based buffer overflows in Imlib 2 (aka imlib2) 1.4.0 allow user-assisted remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via (1) a PNM image with a crafted header, related to the load function in src/modules/loaders/loader_pnm.c; or (2) a crafted XPM image, related to the load function in src/modules/loader_xpm.c.