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| Content Provider | ACM Digital Library |
|---|---|
| Author | Regehr, John Li, Peng Dietz, Will Adve, Vikram |
| Copyright Year | 2015 |
| Abstract | Integer overflow bugs in C and C++ programs are difficult to track down and may lead to fatal errors or exploitable vulnerabilities. Although a number of tools for finding these bugs exist, the situation is complicated because not all overflows are bugs. Better tools need to be constructed, but a thorough understanding of the issues behind these errors does not yet exist. We developed IOC, a dynamic checking tool for integer overflows, and used it to conduct the first detailed empirical study of the prevalence and patterns of occurrence of integer overflows in C and C++ code. Our results show that intentional uses of wraparound behaviors are more common than is widely believed; for example, there are over 200 distinct locations in the SPEC CINT2000 benchmarks where overflow occurs. Although many overflows are intentional, a large number of accidental overflows also occur. Orthogonal to programmers' intent, overflows are found in both well-defined and undefined flavors. Applications executing undefined operations can be, and have been, broken by improvements in compiler optimizations. Looking beyond SPEC, we found and reported undefined integer overflows in SQLite, PostgreSQL, SafeInt, GNU MPC and GMP, Firefox, LLVM, Python, BIND, and OpenSSL; many of these have since been fixed. |
| Starting Page | 1 |
| Ending Page | 29 |
| Page Count | 29 |
| File Format | |
| ISSN | 1049331X |
| e-ISSN | 15577392 |
| DOI | 10.1145/2743019 |
| Volume Number | 25 |
| Issue Number | 1 |
| Journal | ACM Transactions on Software Engineering and Methodology (TOSEM) |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2015-12-02 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Integer overflow Integer wraparound Undefined behavior |
| Content Type | Text |
| Resource Type | Article |
| Subject | Software |
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