| 标题 | pymumu smartdns 47.1 Stack-based Buffer Overflow |
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| 描述 | SmartDNS version 47.1 contains a stack-based buffer overflow vulnerability in the _dns_decode_SVCB_HTTPS function in src/dns.c. The issue occurs due to missing boundary checks in _dns_read_short when parsing malformed SVCB/HTTPS records. Remote attackers can exploit this via a crafted UDP packet to cause a Denial of Service (DoS) or potential information disclosure. The vendor has confirmed the issue and fixed it in commit 2d57c4b4e1add9b4537aeb403f794a084727e1c8. |
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| 来源 | ⚠️ https://github.com/pymumu/smartdns/commit/2d57c4b4e1add9b4537aeb403f794a084727e1c8 |
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| 用户 | liloler (UID 94450) |
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| 提交 | 2026-01-13 03時55分 (9 月前) |
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| 管理 | 2026-01-25 18時17分 (13 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 342841 [pymumu SmartDNS 直到 47.1 SVBC Record Parser src/dns.c _dns_decode_rr_head/_dns_decode_SVCB_HTTPS 内存损坏] |
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| 积分 | 20 |
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