CVE-2020-21547

Name of the Vulnerable Software and Affected Versions Libsixel version 1.8.2

Description The issue is related to a heap-based buffer overflow in the dither func fs function in tosixel.c. This can be exploited by a remote attacker to access confidential data, compromise data integrity, and cause a denial of service.

Recommendations For Libsixel version 1.8.2, consider disabling the dither func fs function as a temporary workaround until a patch is available. Restrict access to the tosixel.c component to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.