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Interrupting a noninterruptible signal handler can result in a variety of vulnerabilities [Zalewski 2001].
Recommendation | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
SIG00-C | High | Likely | High | P9 | L2 |
Automated Detection
Tool | Version | Checker | Description | ||||||
|---|---|---|---|---|---|---|---|---|---|
| CodeSonar |
| BADFUNC.SIGNAL | Use of signal | ||||||
| LDRA tool suite |
| 44 S | Enhanced enforcement | ||||||
| Parasoft C/C++test |
|
|
|
| MISRA2004- |
| 20_ |
| 8_b | Use of signal | ||||||||
| PRQA QA-C |
| 5019 | Partially implemented |
Related Vulnerabilities
Search for vulnerabilities resulting from the violation of this rule on the CERT website.
Related Guidelines
| SEI CERT C++ Coding Standard | VOID SIG00-CPP. Mask signals handled by noninterruptible signal handlers |
| MITRE CWE | CWE-662, Insufficient synchronization |
Bibliography
| [C99 Rationale 2003] | Subclause 5.2.3, "Signals and Interrupts" |
| [Dowd 2006] | Chapter 13, "Synchronization and State" ("Signal Interruption and Repetition") |
| [IEEE Std 1003.1:2013] | XSH, System Interface, longjmp |
| [OpenBSD] | signal() Man Page |
| [Zalewski 2001] | "Delivering Signals for Fun and Profit" |
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