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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. References: https://nvd.nist.gov/vuln/detail/CVE-2019-20433 Upstream patches:de29341638cefd447e55(From OE-Core rev: 07dc85604baf696cccf784c909dbad67275ad7b3) Signed-off-by: Stefan Ghinea <stefan.ghinea@windriver.com> Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>