SB2023102028 - Red Hat Enterprise Linux 8 update for the php:8.0 module
Published: October 20, 2023 Updated: February 7, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Use of insufficiently random values (CVE-ID: CVE-2023-0567)
The vulnerability allows a remote attacker to bypass authentication.
The vulnerability exists due to an error within the Password_verify() function, which always returns true with some hashes. A remote attacker can bypass authentication process and gain unauthorized access to the application.
2) Out-of-bounds write (CVE-ID: CVE-2023-0568)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in fopen_wrappers.c. A remote attacker can pass a specially crafted filename to the affected application, trigger a one-byte buffer overflow and crash the application or potentially execute arbitrary code.
3) Input validation error (CVE-ID: CVE-2023-0662)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when parsing multipart request body. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
4) Use of insufficiently random values (CVE-ID: CVE-2023-3247)
The vulnerability allows a remote attacker to bypass authentication.
The vulnerability exists due to a missing error check and insufficient random bytes in HTTP Digest authentication for SOAP. A remote attacker can perform a brute-force attack and bypass authentication process.
5) XML External Entity injection (CVE-ID: CVE-2023-3823)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
6) Buffer overflow (CVE-ID: CVE-2023-3824)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the phar_dir_read() function. A remote attacker can force the application to open a specially crafted .phar archive, trigger memory corruption and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.