| Package | Affected versions | Patched versions |
|---|---|---|
| hhvm | = 4.57.0= 4.58.0= 4.58.1= 4.59.0= 4.60.0= 4.61.0= 4.62.0≥ 4.33.0, < 4.56.1< 4.32.3 | 4.56.14.32.3 |
When unserializing an object with dynamic properties HHVM needs to pre-reserve the full size of the dynamic property array before inserting anything into it. Otherwise the array might resize, invalidating previously stored references. This pre-reservation was not occurring in HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.
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