Stack-based buffer overflow in the ValidateMove function in frontend/move.cc in GNU Chess (aka gnuchess) before 6.2.4 might allow context-dependent attackers to execute arbitrary code via a large input, as demonstrated when in UCI mode.
http://www.openwall.com/lists/oss-security/2016/11/14/12
http://www.openwall.com/lists/oss-security/2016/11/14/11
http://www.openwall.com/lists/oss-security/2016/11/13/2
http://svn.savannah.gnu.org/viewvc/chess?revision=134&view=revision