提出 #673155: dnsmasq v2.73rc6 NULL Pointer Dereference情報

タイトルdnsmasq v2.73rc6 NULL Pointer Dereference
説明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).
ソース⚠️ https://shimo.im/docs/5xkGoMo0WVfY4dkX/
ユーザー
 zh_vul (UID 91488)
送信2025年10月11日 05:48 (12 月 ago)
モデレーション2025年10月25日 08:22 (14 days later)
ステータス承諾済み
VulDBエントリ329870 [dnsmasq 迄 2.73rc6 Config File src/option.c parse_dhcp_opt m サービス拒否]
ポイント20

Do you want to use VulDB in your project?

Use the official API to access entries easily!