Format string vulnerability in the osLogMsg function in server/os/aulog.c in Network Audio System (NAS) 1.9.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in unspecified vectors, related to syslog.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-4160
http://www.securityfocus.com/bid/61852
http://www.openwall.com/lists/oss-security/2013/08/19/3
http://www.openwall.com/lists/oss-security/2013/08/16/2
http://www.debian.org/security/2013/dsa-2771