{"id":"CVE-2021-28840","state":"PUBLISHED","title":"Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100","description":"Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability.","publishedAt":"2021-08-10T17:32:44.000Z","updatedAt":"2024-08-03T21:55:11.626Z","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.dlink.com/en/security-bulletin/","https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf","https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:19.096Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/28xxx/CVE-2021-28840.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-28840","state":"PUBLISHED","datePublished":"2021-08-10T17:32:44.000Z","dateUpdated":"2024-08-03T21:55:11.626Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-03-19T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://www.dlink.com/en/security-bulletin/","tags":["x_refsource_MISC"]},{"url":"https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf","tags":["x_refsource_MISC"]},{"url":"https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2021-08-10T17:32:44.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-28840","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":"Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://www.dlink.com/en/security-bulletin/","refsource":"MISC","url":"https://www.dlink.com/en/security-bulletin/"},{"name":"https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf","refsource":"MISC","url":"https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf"},{"name":"https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf","refsource":"MISC","url":"https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.dlink.com/en/security-bulletin/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T21:55:11.626Z"}}]}}}