Integer overflow in the load_image function in file-xwd.c in the X Window Dump (XWD) plug-in in GIMP 2.6.9 and earlier, when used with glib before 2.24, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large color entries value in an X Window System (XWD) image dump.
Heap-based buffer overflow in the read_xwd_cols function in file-xwd.c in the X Window Dump (XWD) plug-in in GIMP 2.6.9 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an X Window System (XWD) image dump with more colors than color map entries. Use-after-free vulnerability in the xcf_load_image function in app/xcf/xcf-load.c in GIMP allows remote attackers to cause a denial of service (program crash) or possibly execute arbitrary code via a crafted XCF file. It is also possible that an attack vector exists against the related code in cursor/xcursor.c in Wayland through 1.14.0. LibXcursor before 1.1.15 has various integer overflows that could lead to heap buffer overflows when processing malicious cursors, e.g., with programs like GIMP. In GIMP 2.8.22, there is a heap-based buffer over-read in load_image in plug-ins/common/file-gbr.c in the gbr import parser, related to mishandling of UTF-8 data. In GIMP 2.8.22, there is a heap-based buffer overflow in the fli_read_brun function in plug-ins/file-fli/fli.c.
In GIMP 2.8.22, there is a heap-based buffer over-read in ReadImage in plug-ins/common/file-tga.c (related to bgr2rgb.part.1) via an unexpected bits-per-pixel value for an RGBA image. In GIMP 2.8.22, there is a heap-based buffer over-read in read_creator_block in plug-ins/common/file-psp.c.
In GIMP 2.8.22, there is a stack-based buffer over-read in xcf_load_stream in app/xcf/xcf.c when there is no '\0' character after the version string. In GIMP 2.8.22, there is a heap-based buffer overflow in read_channel_data in plug-ins/common/file-psp.c. This might be leveraged by attackers to overwrite files or read file content that was intended to be private. GIMP through 2.10.2 makes g_get_tmp_dir calls to establish temporary filenames, which may result in a filename that already exists, as demonstrated by the gimp_write_and_read_file function in app/tests/test-xcf.c. NOTE: GEGL releases before 0.4.34 are used in GIMP releases before 2.10.30 however, this does not imply that GIMP builds enable the vulnerable feature. This is caused by use of the system library function for execution of the ImageMagick convert fallback in magick-load. Load_cache in GEGL before 0.4.34 allows shell expansion when a pathname in a constructed command line is not escaped or filtered. Through a crafted XCF file, the program will allocate for a huge amount of memory, resulting in insufficient memory or program crash. GIMP 2.10.30 and 2.99.10 are vulnerable to Buffer Overflow. An issue in gimp_layer_invalidate_boundary of GNOME GIMP 2.10.30 allows attackers to trigger an unhandled exception via a crafted XCF file, causing a Denial of Service (DoS).
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