| タイトル | D-Link DIR895LA1_102b07 A1_102b07 Stack-based Buffer Overflow |
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| 説明 | A stack-based buffer overflow vulnerability exists in the `udhcpcd` DHCP server of D-Link DIR-895L. The issue is located in the TR-111 parsing routine for DHCP vendor-specific option 125, where attacker-controlled suboption data is copied into fixed-size stack buffers using `strcpy()` even though the source data is length-delimited DHCP option content rather than a NUL-terminated C string.
Because the vulnerable path is reachable from unauthenticated DHCP client traffic on the local network, a remote attacker on the LAN can trigger memory corruption by sending a crafted DHCP message containing a malicious option 125 payload. |
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| ソース | ⚠️ https://tzh00203.notion.site/D-Link-DIR-895L-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80dc8140e1502e4814d0 |
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| ユーザー | tian (UID 93438) |
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| 送信 | 2026年07月27日 11:28 (1 月 ago) |
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| モデレーション | 2026年09月07日 20:42 (1 month later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 399662 [D-Link DIR-895L A1_102b07 udhcpcd udhcpcd/serverpacket.c sendOffer/sendACK メモリ破損] |
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| ポイント | 17 |
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