إرسال #673155: dnsmasq v2.73rc6 NULL Pointer Dereferenceالمعلومات

عنوانdnsmasq v2.73rc6 NULL Pointer Dereference
الوصفdnsmasq v2.73rc6 contains a null pointer write in parse_dhcp_opt() when handling OPTION_SIP_SERVER. If the configuration provides an empty or otherwise invalid text value such that the builder buffer m is never allocated, the code still executes m[0] = 0, writing to NULL and crashing during startup. Reproduce by replacing dnsmasq.conf with the provided file and launching ./dnsmasq (AFLNet seed result4/id:19 also triggers the same path).
المصدر⚠️ https://shimo.im/docs/5xkGoMo0WVfY4dkX/
المستخدم
 zh_vul (UID 91488)
ارسال11/10/2025 05:48 AM (12 أشهر منذ)
الاعتدال25/10/2025 08:22 AM (14 days later)
الحالةتمت الموافقة
إدخال VulDB329870 [dnsmasq حتى 2.73rc6 Config File src/option.c parse_dhcp_opt m الحرمان من الخدمة]
النقاط20

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