| Package | Affected versions | Patched versions |
|---|---|---|
| ruby | = 2.6.0≥ 2.2.0, < 2.2.10≥ 2.3.0, < 2.3.7≥ 2.4.0, < 2.4.4≥ 2.5.0, < 2.5.1 | 2.2.102.3.72.4.42.5.1 |
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format (similar to format string vulnerabilities) can trigger a buffer under-read in the String#unpack method, resulting in a massive and controlled information disclosure.
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