SB2019022307 - Buffer overflow in PHP
Published: February 23, 2019 Updated: July 17, 2020
Security Bulletin ID
SB2019022307
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2019-9025)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
Remediation
Install update from vendor's website.