MGASA-2021-0549

Buffer overflow vulnerability in function stbi_extendreceive in stb_image.h in stb 2.26 via a crafted JPEG file. (CVE-2021-28021)

An issue was discovered in stb stbimage.h 1.33 through 2.27. The HDR loader parsed truncated end-of-file RLE scanlines as an infinite sequence of zero-length runs. An attacker could potentially have caused denial of service in applications using stbimage by submitting crafted HDR files. (CVE-2021-42715)

An issue was discovered in stb stbimage.h 2.27. The PNM loader incorrectly interpreted 16-bit PGM files as 8-bit when converting to RGBA, leading to a buffer overflow when later reinterpreting the result as a 16-bit buffer. An attacker could potentially have crashed a service using stbimage, or read up to 1024 bytes of non-consecutive heap data without control over the read location. (CVE-2021-42716)