The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing ...
The base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at least 1Gb as input via `CURLOPT_USERNAME`.
A flaw was found in curl before version 7.51.0. The way curl handles cookies permits other threads to trigger a use-after-free leading to information disclosure.
Integer overflow in the pixops_scale_nearest function in pixops/pixops.c in gdk-pixbuf before 2.32.1 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted GIF image file, which triggers a heap-based buffer overflow.
Integer overflow in the gdk_cairo_set_source_pixbuf function in gdk/gdkcairo.c in GTK+ before 3.9.8, as used in eom, gnome-photos, eog, gambas3, thunar, pinpoint, and possibly other applications, allows remote attackers to cause a denial of service (crash) via a large image file, which triggers a large memory allocation.
Multiple integer overflows in the (1) pixops_composite_nearest, (2) pixops_composite_color_nearest, and (3) pixops_process functions in pixops/pixops.c in gdk-pixbuf before 2.33.1 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted image, which triggers a heap-based buffer overflow.
The mod_http2 module in the Apache HTTP Server 2.4.17 through 2.4.23, when the Protocols configuration includes h2 or h2c, does not restrict request-header length, which allows remote attackers to cause a denial of service (memory consumption) via crafted CONTINUATION frames in an HTTP/2 request.
Integer overflow in gd_io.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via vectors involving the number of horizontal and vertical chunks in an image.