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19 lines
1.4 KiB
Markdown
19 lines
1.4 KiB
Markdown
# Improvements to Java analysis
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## Changes to existing queries
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| **Query** | **Expected impact** | **Change** |
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|----------------------------|------------------------|------------------------------------------------------------------|
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| Equals method does not inspect argument type (`java/unchecked-cast-in-equals`) | Fewer false positive and more true positive results | Precision has been improved by doing a bit of inter-procedural analysis and relying less on ad-hoc method names. |
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| Uncontrolled data in arithmetic expression (`java/uncontrolled-arithmetic`) | Fewer false positive results | Precision has been improved in several ways, in particular, by better detection of guards along the data-flow path. |
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| Uncontrolled data used in path expression (`java/path-injection`) | Fewer false positive results | The query no longer reports results guarded by `!var.contains("..")`. |
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| User-controlled data in arithmetic expression (`java/tainted-arithmetic`) | Fewer false positive results | Precision has been improved in several ways, in particular, by better detection of guards along the data-flow path. |
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## Changes to QL libraries
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* The virtual dispatch library has been updated to give more precise dispatch
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targets for `Object.toString()` calls. This affects all security queries and
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removes false positives that arose from paths through impossible `toString()`
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calls.
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