libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable.
{ "binaries": [ { "binary_name": "aspell", "binary_version": "0.60.7~20110707-1ubuntu1+esm2" }, { "binary_name": "libaspell-dev", "binary_version": "0.60.7~20110707-1ubuntu1+esm2" }, { "binary_name": "libaspell15", "binary_version": "0.60.7~20110707-1ubuntu1+esm2" }, { "binary_name": "libpspell-dev", "binary_version": "0.60.7~20110707-1ubuntu1+esm2" } ] }
{ "binaries": [ { "binary_name": "aspell", "binary_version": "0.60.7~20110707-3ubuntu0.1+esm1" }, { "binary_name": "libaspell-dev", "binary_version": "0.60.7~20110707-3ubuntu0.1+esm1" }, { "binary_name": "libaspell15", "binary_version": "0.60.7~20110707-3ubuntu0.1+esm1" }, { "binary_name": "libpspell-dev", "binary_version": "0.60.7~20110707-3ubuntu0.1+esm1" } ] }
{ "binaries": [ { "binary_name": "aspell", "binary_version": "0.60.7~20110707-4ubuntu0.2" }, { "binary_name": "libaspell-dev", "binary_version": "0.60.7~20110707-4ubuntu0.2" }, { "binary_name": "libaspell15", "binary_version": "0.60.7~20110707-4ubuntu0.2" }, { "binary_name": "libpspell-dev", "binary_version": "0.60.7~20110707-4ubuntu0.2" } ] }