Buffer overflow in the thread scheduler in Chicken before 4.8.0.1 allows attackers to cause a denial of service (crash) by opening a file descriptor with a large integer value.
https://security-tracker.debian.org/tracker/CVE-2012-6122
https://lists.nongnu.org/archive/html/chicken-users/2012-06/msg00031.html
https://lists.nongnu.org/archive/html/chicken-hackers/2012-11/msg00075.html
http://www.openwall.com/lists/oss-security/2013/05/09/1
http://www.openwall.com/lists/oss-security/2013/05/08/3
http://www.openwall.com/lists/oss-security/2013/02/08/2
http://lists.gnu.org/archive/html/chicken-announce/2013-10/msg00000.html