PT-2021-10267
CVE-2020-1900
·
تاريخ النشر
2021-03-11
·
تاريخ التحديث
2021-03-18
الوصف من
CVSS 3.1
9.8
حرجةالمقاييسAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions:
HHVM versions prior to 4.32.3
HHVM versions 4.33.0 through 4.62.0
Description:
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 for the specified versions.
Recommendations:
For HHVM versions prior to 4.32.3, update to version 4.32.3 or later.
For HHVM versions 4.33.0 through 4.62.0, update to a version later than 4.62.0.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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