NetSight
high7.5

CVE-2020-1921

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.

Impact

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

VendorProductAffected versions
FacebookHhvm
before 4.56.3
from 4.57.0 before 4.80.2
from 4.81.0 before 4.93.2
Versions 4.94.0, 4.95.0, 4.96.0

Weakness classification

References