| Package | Affected versions | Patched versions |
|---|---|---|
| php | ≥ 7.3.0, < 7.3.1 | 7.3.1 |
An issue was discovered in PHP 7.3.x before 7.3.1. An invalid multibyte string supplied as an argument to the mb_split() function in ext/mbstring/php_mbregex.c can cause PHP to execute memcpy() with a negative argument, which could read and write past buffers allocated for the data.
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