CVE-2020-1919
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Facebook Hhvm
PublishedMar 10, 2021
First seenMar 10, 2021
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- facebook hhvm4.56.3, 4.80.2, 4.93.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| facebook hhvm | v < 4.56.3, 4.57.0 ≤ v < 4.80.2, 4.81.0 ≤ v < 4.93.2, 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0 | 4.56.3, 4.80.2, 4.93.2 |
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