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.
The product reads data past the end, or before the beginning, of the intended buffer.
Link | Tags |
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https://bugs.php.net/bug.php?id=77367 | issue tracking patch vendor advisory exploit |
https://security.netapp.com/advisory/ntap-20190321-0001/ | third party advisory |