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CVE-2020-1921 In the crypt function, we attempt to null terminate a buffer using the size of the input salt without validating that…
Description
In the crypt function, we attempt to null terminate a buffer using the size of the input salt without validating that the offset is within the buffer. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| HHVM | 4.98.0 | 4.98.1 |
| HHVM | 4.97.0 | 4.97.1 |
| HHVM | 4.96.0 | 4.96.1 |
| HHVM | 4.95.0 | 4.95.1 |
| HHVM | 4.94.0 | 4.94.1 |
| HHVM 4.93 | earliest → < 4.93.2 | 4.93.2 |
| HHVM 4.81 | 4.81.0 → latest | No fix stated |
| HHVM 4.80 | earliest → < 4.80.2 | 4.80.2 |
| HHVM 4.57 | 4.57.0 → latest | No fix stated |
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| Product | Affected versions | Fixed in |
|---|---|---|
| HHVM 4.56 | earliest → < 4.56.3 | 4.56.3 |
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