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[ GLSA 200802-01 ] SDL_image: Two buffer overflow vulnerabilities
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PostPosted: Wed Feb 06, 2008 10:26 pm    Post subject: [ GLSA 200802-01 ] SDL_image: Two buffer overflow vulnerabil Reply with quote

Gentoo Linux Security Advisory

Title: SDL_image: Two buffer overflow vulnerabilities (GLSA 200802-01)
Severity: normal
Exploitable: remote
Date: February 06, 2008
Bug(s): #207933
ID: 200802-01

Synopsis

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.

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.

Affected Packages

Package: media-libs/sdl-image
Vulnerable: < 1.2.6-r1
Unaffected: >= 1.2.6-r1
Architectures: All supported architectures


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


References

SA28640
CVE-2007-6697
CVE-2008-0544
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