Do not access DB_CONFIG when db_home is not set Fixes CVE-2017-10140: https://bugzilla.redhat.com/show_bug.cgi?id=1464032#c9 Downloaded from http://pkgs.fedoraproject.org/cgit/rpms/libdb.git/commit/?id=8047fa8580659fcae740c25e91b490539b8453eb Signed-off-by: Bernd Kuhls --- db-5.3.28/src/env/env_open.c.old 2017-06-26 10:32:11.011419981 +0200 +++ db-5.3.28/src/env/env_open.c 2017-06-26 10:32:46.893721233 +0200 @@ -473,7 +473,7 @@ env->db_mode = mode == 0 ? DB_MODE_660 : mode; /* Read the DB_CONFIG file. */ - if ((ret = __env_read_db_config(env)) != 0) + if (env->db_home != NULL && (ret = __env_read_db_config(env)) != 0) return (ret); /*