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.
oryginał ENCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HFacebook Hhvm
APPFacebook4.57.04.58.04.58.14.59.04.60.04.61.04.62.04.33.0 – 4.56.1 (bez)< 4.32.3
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