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Heap-based Buffer Overflow Affecting php-bcmath package, versions <0:7.2.24-1.module+el8.2.0+4601+7c76a223

Severity

 Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
1.03% (85th percentile)

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  • Snyk IDSNYK-CENTOS8-PHPBCMATH-2031013
  • published26 Jul 2021
  • disclosed29 Dec 2018
Report a new vulnerability Found a mistake?

Introduced: 29 Dec 2018

CVE-2019-9023  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Centos:8 php-bcmath to version 0:7.2.24-1.module+el8.2.0+4601+7c76a223 or higher.

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:8 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 number of heap-based buffer over-read instances are present in mbstring regular expression functions when supplied with invalid multibyte data. These occur in ext/mbstring/oniguruma/regcomp.c, ext/mbstring/oniguruma/regexec.c, ext/mbstring/oniguruma/regparse.c, ext/mbstring/oniguruma/enc/unicode.c, and ext/mbstring/oniguruma/src/utf32_be.c when a multibyte regular expression pattern contains invalid multibyte sequences.

References