Some vulnerabilities have been discovered in Gimp, which can be exploited by malicious people to compromise a user's system.
1) A boundary error within the "loadit()" function in plug-ins/common/sphere-designer.c of the "Sphere Designer" plugin can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into opening a specially crafted file via the plugin.
2) Boundary errors within the "load_preset_response()" function in plug-ins/lighting/lighting-ui.c of the "Lighting Effects" plugin can be exploited to cause stack-based buffer overflows by e.g. tricking a user into opening a specially crafted "Lighting preset" file via the plugin.
3) A boundary error within the "gfig_read_parameter_gimp_rgb()" function in plug-ins/gfig/gfig-style.c can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into opening a specially GFIG file or opening a specially crafted XCF file and subsequently using the GFIG plugin.
4) A boundary error within the "read_channel_data()" function in plug-ins/common/file-psp.c can be exploited to cause a heap-based buffer overflow by e.g. tricking a user into opening a specially crafted PSP file.
The vulnerabilities are confirmed in version 2.6.11. Other versions may also be affected.
Solution: Update to version 2.6.12.
Provided and/or discovered by: Non Customers Crew
Original Advisory: Debian Bug #608497:
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Subject: Gimp Multiple Vulnerabilities
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