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Heap-based Buffer Overflow Affecting php-bcmath package, versions *

Severity

 Recommended
low

Based on CentOS security rating.

Threat Intelligence

EPSS
2.27% (90th percentile)

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  • Snyk IDSNYK-CENTOS7-PHPBCMATH-2002457
  • published26 Jul 2021
  • disclosed6 Dec 2018
Report a new vulnerability Found a mistake?

Introduced: 6 Dec 2018

CVE-2019-9021  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 php-bcmath.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php-bcmath package and not the php-bcmath package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. A heap-based buffer over-read in PHAR reading functions in the PHAR extension may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse the file name, a different vulnerability than CVE-2018-20783. This is related to phar_detect_phar_fname_ext in ext/phar/phar.c.