An issue was discovered in ytnef before 1.9.2. There is a potential out-of-bounds access with fields of Size 0 in TNEFParse() in libytnef.Referenceshttps://github.com/Yeraze/ytnef/commit/3cb0f914d6427073f262e1b2b5fd973e3043cdf7http://www.debian.org/security/2017/dsa-3846https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/