SDL_image: Two buffer overflow vulnerabilities — GLSA 200802-01

Two boundary errors have been identified in SDL_image allowing for the remote execution of arbitrary code or the crash of the application using the library.

Affected Packages

media-libs/sdl-image on all architectures
Affected versions < 1.2.6-r1
Unaffected versions >= 1.2.6-r1

Background

SDL_image is an image file library that loads images as SDL surfaces, and supports various formats like BMP, GIF, JPEG, LBM, PCX, PNG, PNM, TGA, TIFF, XCF, XPM, and XV.

Description

The LWZReadByte() function in file IMG_gif.c and the IMG_LoadLBM_RW() function in file IMG_lbm.c each contain a boundary error that can be triggered to cause a static buffer overflow and a heap-based buffer overflow. The first boundary error comes from some old vulnerable GD PHP code (CVE-2006-4484).

Impact

A remote attacker can make an application using the SDL_image library to process a specially crafted GIF file or IFF ILBM file that will trigger a buffer overflow, resulting in the execution of arbitrary code with the permissions of the application or the application crash.

Workaround

There is no known workaround at this time.

Resolution

All SDL_image users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-libs/sdl-image-1.2.6-r1"

References

Release Date
February 06, 2008

Latest Revision
February 06, 2008: 01

Severity
normal

Exploitable
remote

Bugzilla entries