There is a vulnerability in the strided image data parsing code in the emscripten wrapper for libheif. An attacker could exploit this through a crafted image file to cause a buffer overflow in linear memory during a memcpy call.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
| Link | Tags |
|---|---|
| https://github.com/strukturag/libheif/pull/759 | patch vendor advisory |
| https://govtech-csg.github.io/security-advisories/2023/02/24/CVE-2023-0996.html | third party advisory |