Filtered by vendor Hcc-embedded
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3 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-25928 | 1 Hcc-embedded | 1 Nichestack Tcp\/ip | 2021-08-26 | 7.5 HIGH | 9.8 CRITICAL |
| The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Buffer Overflow. The impact is: execute arbitrary code (remote). The component is: DNS response processing functions: dns_upcall(), getoffset(), dnc_set_answer(). The attack vector is: a specific DNS response packet. The code does not check the "response data length" field of individual DNS answers, which may cause out-of-bounds read/write operations, leading to Information leak, Denial-or-Service, or Remote Code Execution, depending on the context. | |||||
| CVE-2020-35685 | 2 Hcc-embedded, Siemens | 5 Nichestack, Sentron 3wa Com190, Sentron 3wa Com190 Firmware and 2 more | 2021-08-26 | 6.4 MEDIUM | 9.1 CRITICAL |
| An issue was discovered in HCC Nichestack 3.0. The code that generates Initial Sequence Numbers (ISNs) for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existing ones or spoof future ones. (Proper ISN generation should aim to follow at least the specifications outlined in RFC 6528.) | |||||
| CVE-2021-31226 | 1 Hcc-embedded | 1 Interniche | 2021-08-26 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in HCC embedded InterNiche 4.0.1. A potential heap buffer overflow exists in the code that parses the HTTP POST request, due to lack of size validation. This vulnerability requires the attacker to send a crafted HTTP POST request with a URI longer than 50 bytes. This leads to a heap overflow in wbs_post() via an strcpy() call. | |||||