An issue was discovered in Samsung TizenRT through 3.0_GBM (and 3.1_PRE). createDB in security/provisioning/src/provisioningdatabasemanager.c has a missing sqlite3_free after sqlite3_exec, leading to a denial of service.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://github.com/Samsung/TizenRT/issues/5628 | issue tracking third party advisory |
| https://www.sqlite.org/c3ref/exec.html | third party advisory technical description |
| https://github.com/Samsung/TizenRT/blob/f8f776dd183246ad8890422c1ee5e8f33ab2aaaf/external/iotivity/iotivity_1.2-rel/resource/csdk/security/provisioning/src/provisioningdatabasemanager.c#L103 | third party advisory exploit |
| https://github.com/Samsung/TizenRT/blob/f8f776dd183246ad8890422c1ee5e8f33ab2aaaf/external/iotivity/iotivity_1.2-rel/resource/csdk/security/provisioning/src/provisioningdatabasemanager.c#L107 | third party advisory exploit |