Multiple format string vulnerabilities in Yet Another Radius Daemon (YARD RADIUS) 1.1.2 allow context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via format string specifiers in a request in the (1) log_msg function in log.c or (2) version or (3) build_version function in version.c.

Buffer overflow in the process_menu function in yardradius 1.0.20 allows remote attackers to execute arbitrary code.

Multiple RADIUS implementations do not properly validate the Vendor-Length of the Vendor-Specific attribute, which allows remote attackers to cause a denial of service (crash) via a Vendor-Length that is less than 2.

Buffer overflow in digest calculation function of multiple RADIUS implementations allows remote attackers to cause a denial of service and possibly execute arbitrary code via shared secret data.