Due to incorrect string size calculations inside the...
Critical severity
Unreviewed
Published
May 24, 2022
to the GitHub Advisory Database
•
Updated Jan 29, 2023
Description
Published by the National Vulnerability Database
Mar 10, 2021
Published to the GitHub Advisory Database
May 24, 2022
Last updated
Jan 29, 2023
Due to incorrect string size calculations inside the preg_quote function, a large input string passed to the function can trigger an integer overflow leading to a heap overflow. 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.
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