CVE-2020-1919

2021-03-1016:15:14

Google

osv.dev

cve-2020-1919

hhvm

bounds calculations

out-of-bounds read

substr_compare

software vulnerability

AI Score

6.7

Confidence

High

EPSS

0.002

Percentile

55.1%

JSON

Incorrect bounds calculations in substr_compare could lead to an out-of-bounds read when the second string argument passed in is longer than the first. 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.