Уязвимость библиотеки векторной графики Cairo, позволяющая нарушителю вызвать отказ в обслуживании

Уязвимость компонента image-compositor.c библиотеки векторной графики Cairo, связанная с переполнением буфера стека данных, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании

The cairo_image_surface_get_data function in Cairo 1.10.2, as used in GTK+ and Wireshark, allows context-dependent attackers to cause a denial of service (NULL pointer dereference) via a large string.

The fill_xrgb32_lerp_opaque_spans function in cairo-image-compositor.c in cairo before 1.14.2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a negative span length.

Integer overflow in the write_png function in cairo 1.14.6 allows remote attackers to cause a denial of service (invalid pointer dereference) via a large svg file.

Cairo version 1.15.4 is vulnerable to a NULL pointer dereference related to the FT_Load_Glyph and FT_Render_Glyph resulting in an application crash.

cairo-truetype-subset.c in cairo 1.15.6 and earlier allows remote attackers to cause a denial of service (out-of-bounds read) because of mishandling of an unexpected malloc(0) call.

cairo through 1.15.14 has an out-of-bounds stack-memory write during processing of a crafted document by WebKitGTK+ because of the interaction between cairo-rectangular-scan-converter.c (the generate and render_rows functions) and cairo-image-compositor.c (the _cairo_image_spans_and_zero function).

cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an application crash with a "free(): invalid pointer" error.

A flaw was found in cairo's image-compositor.c in all versions prior to 1.17.4. This flaw allows an attacker who can provide a crafted input file to cairo's image-compositor (for example, by convincing a user to open a file in an application using cairo, or if an application uses cairo on untrusted input) to cause a stack buffer overflow -> out-of-bounds WRITE. The highest impact from this vulnerability is to confidentiality, integrity, as well as system availability.