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GoogleOSV:CVE-2020-1900HistoryMar 11, 2021 - 1:15 a.m.
CVE-2020-1900
2021-03-1101:15:14
Google
osv.dev
5
hhvm
unserialization
array resizing
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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