CVE-2020-35683

CVE-2020-35683 affects HCC Embedded/InterNiche Nichestack/NicheLite prior to version 4.3. The root cause is an unchecked IP payload size used to compute the ICMP checksum, which can cause an out-of-bounds read and lead to Denial-of-Service. Red Hat notes the in_ipv4 module (v1.5) as impacted; CIS...

CVE-2020-35683

An issue was discovered in HCC Nichestack 3.0. The code that parses ICMP packets relies on an unchecked value of the IP payload size extracted from the IP header to compute the ICMP checksum. When the IP payload size is set to be smaller than the size of the IP header, the ICMP checksum computati...

CVE-2021-36762

An issue was discovered in HCC Embedded InterNiche NicheStack through 4.3. The tfshnd:tftpsrv.c TFTP packet processing function doesn't ensure that a filename is adequately '\0' terminated; therefore, a subsequent call to strlen for the filename might read out of bounds of the protocol packet...

CVE-2021-36762

CVE-2021-36762 affects HCC Embedded InterNiche NicheStack and NicheLite up to version 4.3. The tfshnd():tftpsrv.c TFTP packet processing function may read beyond the protocol buffer when a filename isn’t properly NULL-terminated, enabling out-of-bounds reads and potential DoS. Impact is described...

CVE-2021-27565

The CVE-2021-27565 entry affects HCC Embedded’s InterNiche/NicheStack TCP/IP stack (and NicheLite) prior to version 4.3. The issue is an HTTP request handling bug in the stack that can trigger an infinite loop via a valid but unexpected request (e.g., OPTIONS), causing a denial of service by disr...

CVE-2021-27565

The web server in InterNiche NicheStack through 4.0.1 allows remote attackers to cause a denial of service infinite loop and networking outage via an unexpected valid HTTP request such as OPTIONS. This occurs because the HTTP request handler enters a miscoded wbsloop debugger hook...

CVE-2020-25928

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: dnsupcall, getoffset, dncsetanswer. The attack vector is: a specific DNS response packet. The code does not che...

CVE-2020-25926

The DNS client in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Insufficient entropy in the DNS transaction id. The impact is: DNS cache poisoning remote. The component is: dnsquerytype. The attack vector is: a specific DNS response packet...

CVE-2020-25927

The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Out-of-bounds Read. The impact is: a denial of service remote. The component is: DNS response processing in function: dnsupcall. The attack vector is: a specific DNS response packet. The code does not check whether the number o...

CVE-2020-25767

An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnccopyin routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet e.g., forward compression pointer jumps are allowed, which leads to an Out-of-bounds...

CVE-2020-25927

The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Out-of-bounds Read. The impact is: a denial of service remote. The component is: DNS response processing in function: dnsupcall. The attack vector is: a specific DNS response packet. The code does not check whether the number o...

Design/Logic Flaw

The DNS client in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Insufficient entropy in the DNS transaction id. The impact is: DNS cache poisoning remote. The component is: dnsquerytype. The attack vector is: a specific DNS response packet...

Design/Logic Flaw

The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Out-of-bounds Read. The impact is: a denial of service remote. The component is: DNS response processing in function: dnsupcall. The attack vector is: a specific DNS response packet. The code does not check whether the number o...

Design/Logic Flaw

An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnccopyin routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet e.g., forward compression pointer jumps are allowed, which leads to an Out-of-bounds...

Remote code execution

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: dnsupcall, getoffset, dncsetanswer. The attack vector is: a specific DNS response packet. The code does not che...

CVE-2020-25928

The CVE-2020-25928 issue is in HCC Embedded’s InterNiche/NicheStack DNS response processing. The vulnerability stems from not validating the length of DNS answer data, which can cause out-of-bounds reads/writes in dns_upcall(), getoffset(), and dnc_set_answer(). This can enable information leakag...

CVE-2020-25928

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: dnsupcall, getoffset, dncsetanswer. The attack vector is: a specific DNS response packet. The code does not che...

CVE-2020-25767

CVE-2020-25767 affects HCC Embedded InterNiche/NicheStack (IPv4) prior to 4.3. The root cause is in the dnc_copy_in DNS domain name parser, which fails to validate that compression pointers stay within packet bounds, enabling an out-of-bounds read and potential DoS via crafted DNS data. Affected ...

CVE-2020-25767

An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnccopyin routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet e.g., forward compression pointer jumps are allowed, which leads to an Out-of-bounds...

CVE-2020-25927

The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Out-of-bounds Read. The impact is: a denial of service remote. The component is: DNS response processing in function: dnsupcall. The attack vector is: a specific DNS response packet. The code does not check whether the number o...