{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyupo5656.hatenadiary.org%2Fentry%2F20040629%2Fp4\" title=\" FC2\u306eexec-shield (1) - memologue\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","author_url":"https://blog.hatena.ne.jp/yupo5656/","height":"190","blog_title":"memologue","width":"100%","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","title":" FC2\u306eexec-shield (1)","version":"1.0","url":"https://yupo5656.hatenadiary.org/entry/20040629/p4","author_name":"yupo5656","blog_url":"https://yupo5656.hatenadiary.org/","image_url":null,"published":"2004-06-29 00:00:03","description":"Fedora Core 2 \u306ekernel\u306b\u306f\u3001exec-shield \u3068\u3044\u3046\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u306e\u30d1\u30c3\u30c1\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u76f4\u5f8c\u306e\u72b6\u614b\u3067\u3001\u305d\u308c\u304c\u3061\u3083\u3093\u3068\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u8abf\u3079\u3066\u307f\u307e\u3057\u305f\u3002 \u307e\u305a\u305d\u306e(1)\u3001\u30a2\u30c9\u30ec\u30b9\u30b9\u30da\u30fc\u30b9\u306erandomize\u6a5f\u80fd\u3067\u3059\u3002\u3053\u308c\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u3070\u3063\u3061\u308a\u52b9\u3044\u3066\u3044\u307e\u3059\u306d\u3002buffer overflow \u306a\u3069\u306b\u3088\u308b exploit \u304c\u56f0\u96e3\u306b\u306a\u308a\u307e\u3059\u3002 # cat /proc/sys/kernel/exec-shield-randomize 1 \u3069\u306e\u3088\u3046\u306b\u50cd\u3044\u3066\u3044\u308b\u306e\u304b\u3001\u5c0f\u3055\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u30c1\u30a7\u30c3\u30af\u3057\u3066\u307f\u307e\u3057\u305f\u3002 $ cat > print_stack_address\u2026","categories":["Linux"]}