{"id":"CVE-2021-36762","state":"PUBLISHED","title":"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' ","description":"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 buffer (if no '\\0' byte exists within a reasonable range).","publishedAt":"2021-08-19T11:09:58.000Z","updatedAt":"2024-08-04T01:01:59.411Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://www.hcc-embedded.com/about/about-interniche","https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/","https://www.kb.cert.org/vuls/id/608209"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:44.655Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/36xxx/CVE-2021-36762.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-36762","state":"PUBLISHED","datePublished":"2021-08-19T11:09:58.000Z","dateUpdated":"2024-08-04T01:01:59.411Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-07-16T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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 buffer (if no '\\0' byte exists within a reasonable range)."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://www.hcc-embedded.com/about/about-interniche","tags":["x_refsource_MISC"]},{"url":"https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/","tags":["x_refsource_MISC"]},{"url":"https://www.kb.cert.org/vuls/id/608209","name":"VU#608209","tags":["third-party-advisory","x_refsource_CERT-VN"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2021-08-19T11:10:24.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-36762","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"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 buffer (if no '\\0' byte exists within a reasonable range)."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://www.hcc-embedded.com/about/about-interniche","refsource":"MISC","url":"https://www.hcc-embedded.com/about/about-interniche"},{"name":"https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/","refsource":"MISC","url":"https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/"},{"name":"VU#608209","refsource":"CERT-VN","url":"https://www.kb.cert.org/vuls/id/608209"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.hcc-embedded.com/about/about-interniche","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.kb.cert.org/vuls/id/608209","name":"VU#608209","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T01:01:59.411Z"}}]}}}