| Package | Affected versions | Patched versions |
|---|---|---|
| ruby | = 2.2.0= 2.2.1= 2.2.2= 2.2.3= 2.2.4= 2.2.5= 2.2.6= 2.2.7= 2.3.0= 2.3.1= 2.3.2= 2.3.3= 2.3.4= 2.4.0= 2.4.1 |
Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap.
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