| 标题 | dnsmasq v2.73rc6 NULL Pointer Dereference |
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| 描述 | dnsmasq 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). |
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| 来源 | ⚠️ https://shimo.im/docs/5xkGoMo0WVfY4dkX/ |
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| 用户 | zh_vul (UID 91488) |
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| 提交 | 2025-10-11 05時48分 (12 月前) |
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| 管理 | 2025-10-25 08時22分 (14 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 329870 [dnsmasq 直到 2.73rc6 Config File src/option.c parse_dhcp_opt m 拒绝服务] |
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| 积分 | 20 |
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