CVE-2019-17624

Name of the Vulnerable Software and Affected Versions X.Org X Server version 1.20.4

Description A stack-based buffer overflow exists in the XQueryKeymap function. This can be triggered by sending a large number of ct.c char requests, potentially causing a denial of service or other unspecified impacts.

Recommendations For X.Org X Server version 1.20.4, consider applying a patch or update to fix the buffer overflow issue in the XQueryKeymap function. As a temporary workaround, restrict the input to the XQueryKeymap function to prevent excessive ct.c char requests.