Sixel · Libsixel · CVE-2020-11721
**Name of the Vulnerable Software and Affected Versions**
libsixel version 1.8.6
**Description**
The issue is related to an uninitialized pointer in the `load png` function in `loader.c` in `libsixel.a` of libsixel, leading to an invalid call to `free()`, which can cause a denial of service.
**Recommendations**
For libsixel version 1.8.6, consider updating to a newer version that contains a fix for this issue, as the current version has an uninitialized pointer that can lead to a denial of service.