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Improper handling of signals can lead to security vulnerabilities. The following rules and recommendations are meant to eliminate common errors associated with signal handling.
Recommendations
SIG00-A. Avoid using the same handler for multiple signals
SIG01-A. Understand implementation-specific details regarding signal handler persistence
Rules
SIG30-C. Only call async-safe functions within signal handlers
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Risk Assessment Summary
Recommendations
Recommendation | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
SIG00-A | 3 (high) | 3 (likely) | 1 (high) | P9 | L2 |
SIG01-A | 1 (high) | 1 (likely) | 3 (low) | P3 | L3 |
Rules
Rule | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
SIG30-C | 3 (high) | 3 (likely) | 1 (high) | P9 | L2 |
SIG31-C | 3 (high) | 3 (likely) | 1 (high) | P9 | L2 |
SIG32-C | 3 (high) | 3 (likely) | 1 (high) | P9 | L2 |
SIG33-C | 1 (low) | 1 (uinlikely) | 3 (low) | P3 | L3 |