Memcached 1.6.2 sabuntawa tare da gyara rauni

Aka buga a sabunta tsarin caching data a RAM Zazzagewa 1.6.2, wanda a ciki ake kawar da shi rauni, wanda ke ba ku damar fara ɓarnawar aiki ta hanyar aika buƙatun ƙira na musamman. Rashin lahani yana bayyana farawa daga sakin 1.6.0. A matsayin tsarin tsaro, zaku iya musaki ƙa'idar binary don buƙatun waje ta hanyar aiki tare da zaɓin "-B ascii".

Matsalar ta samo asali ne sakamakon bug in lambar tantance taken binary protocol, wanda ke da alaƙa da ƙayyadaddun kuskuren girman bayanan da aka kwafi zuwa buffer lokacin kiran aikin memcpy (ana ƙididdige girman bisa siga da aka kayyade a cikin taken buƙatun). Ta hanyar sarrafa ƙimar ma'auni a cikin taken ƙa'idar binary, mai kai hari tare da ikon haɗawa zuwa tashar sadarwa ta Memcached zai iya fara ambaliya mai buffer, wanda zai haifar da faɗuwar tsarin ma'aikaci.

source: budenet.ru