CVE-2021-28840
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.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dlink dap-2310_firmware | 2.0.7.rc031 | — |
| dlink dap-2330_firmware | 1.07.rc028 | — |
| dlink dap-2360_firmware | 2.07.rc043 | — |
| dlink dap-2553_firmware | 3.06.rc027 | — |
| dlink dap-2660_firmware | 1.13.rc074 | — |
| dlink dap-2690_firmware | 3.16.rc100 | — |
| dlink dap-2695_firmware | 1.17.rc063 | — |
| dlink dap-3320_firmware | 1.01.rc014 | — |
| dlink dap-3662_firmware | 1.01.rc022 | — |
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