Research Article
A Novel Vulnerable Code Clone Detector Based on Context Enhancement and Patch Validation
Table 2
Examples of vulnerable line-level code fingerprints.
| | Type | Preprocessed vulnerable code | Vulnerable line-level code fingerprint |
| | Vulnerable code segments | FPARAM+=8;
FUNCCALL((FPARAM, "\n\t"));
FPARAM=(const struct FPARAM)LVAR;
FPARAM=FPARAM;
LVAR=FPARAM->FPARAM;
FUNCCALL(FPARAM,LVAR,FUNCCALL(&FPARAM));
FPARAM=FPARAM; | 62e857215c2c8b10a1ebe99046b1b463
04a27a8b584e00db088f18a16ddc1ac6
c3250b774d4bd8bbeea848ae8e091777
4830812a7240fa89419da5ef1e440566
01689c59d66b453ae92f59560a0a430f
d1f3dbd2ab6d7e6199391bb86d1d343a
57e012af713ea16d25ed7bd54a216887 | | Vulnerability patch code | FUNCCALL(&FPARAM);
FUNCCALL(&FPARAM->FPARAM); | +90b650dba71b052ca2a85608a2447c1c | | -e58a03ee48a74c4d50af5bee1ba18d08 | | Vulnerability context code | if(FPARAM>=1&&FUNCCALL(FPARAM)) | 8fddbc554a5ad97e8805a956a8ab5968 |
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