Unchecked Return Value Affecting php-bcmath package, versions <0:8.0.30-1.module+el8.8.0+20302+42d2b711


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-CENTOS8-PHPBCMATH-5775114
  • published13 Jul 2023
  • disclosed3 Jul 2023

Introduced: 3 Jul 2023

CVE-2023-3247  (opens in a new tab)
CWE-252  (opens in a new tab)
CWE-334  (opens in a new tab)

How to fix?

Upgrade Centos:8 php-bcmath to version 0:8.0.30-1.module+el8.8.0+20302+42d2b711 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.

In PHP versions 8.0.* before 8.0.29, 8.1.* before 8.1.20, 8.2.* before 8.2.7 when using SOAP HTTP Digest Authentication, random value generator was not checked for failure, and was using narrower range of values than it should have. In case of random generator failure, it could lead to a disclosure of 31 bits of uninitialized memory from the client to the server, and it also made easier to a malicious server to guess the client's nonce.

CVSS Scores

version 3.1