| 标题 | D-Link DIR895LA1_102b07 A1_102b07 Stack-based Buffer Overflow |
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| 描述 | 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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| 来源 | ⚠️ https://tzh00203.notion.site/D-Link-DIR-895L-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80dc8140e1502e4814d0 |
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| 用户 | tian (UID 93438) |
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| 提交 | 2026-07-27 11時28分 (3 月前) |
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| 管理 | 2026-09-07 20時42分 (1 month later) |
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| 状态 | 已接受 |
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| VulDB条目 | 399662 [D-Link DIR-895L A1_102b07 udhcpcd udhcpcd/serverpacket.c sendOffer/sendACK 内存损坏] |
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| 积分 | 17 |
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