Rapid7 Vulnerability & Exploit Database

Oracle Linux: CVE-2023-0662: ELSA-2023-5927: php:8.0 security update (IMPORTANT) (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Oracle Linux: CVE-2023-0662: ELSA-2023-5927: php:8.0 security update (IMPORTANT) (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
02/15/2023
Created
10/24/2023
Added
10/23/2023
Modified
11/28/2024

Description

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, excessive number of parts in HTTP form upload can cause high resource consumption and excessive number of log entries. This can cause denial of service on the affected server by exhausting CPU resources or disk space.  A vulnerability was found in PHP. This security flaw occurs when the request body parsing in PHP allows any unauthenticated attacker to consume a large amount of CPU time and trigger excessive logging. A large amount of CPU time required for processing requests can block all available worker processes and significantly delay or slow the processing of legitimate user requests. The large volume of warning messages can wear down the disk and fill it up. A complete denial of service is achievable by sending many concurrent multipart requests in a loop. PHP parses the request body before invoking any application scripts. This vulnerability affects all PHP websites that accept POST request bodies (post_max_size set to a value greater than zero, the default value is 8MB).

Solution(s)

  • oracle-linux-upgrade-php
  • oracle-linux-upgrade-php-bcmath
  • oracle-linux-upgrade-php-cli
  • oracle-linux-upgrade-php-common
  • oracle-linux-upgrade-php-dba
  • oracle-linux-upgrade-php-dbg
  • oracle-linux-upgrade-php-devel
  • oracle-linux-upgrade-php-embedded
  • oracle-linux-upgrade-php-enchant
  • oracle-linux-upgrade-php-ffi
  • oracle-linux-upgrade-php-fpm
  • oracle-linux-upgrade-php-gd
  • oracle-linux-upgrade-php-gmp
  • oracle-linux-upgrade-php-intl
  • oracle-linux-upgrade-php-ldap
  • oracle-linux-upgrade-php-mbstring
  • oracle-linux-upgrade-php-mysqlnd
  • oracle-linux-upgrade-php-odbc
  • oracle-linux-upgrade-php-opcache
  • oracle-linux-upgrade-php-pdo
  • oracle-linux-upgrade-php-pgsql
  • oracle-linux-upgrade-php-process
  • oracle-linux-upgrade-php-snmp
  • oracle-linux-upgrade-php-soap
  • oracle-linux-upgrade-php-xml

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;