SB2024080145 - Multiple vulnerabilities in REXML gem

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2024-41123)

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 characters such as a whitespace character, >] and ]>. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

2) XML Entity Expansion (CVE-ID: CVE-2024-41946)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation when parsing XML with SAX2 or pull parser API. A remote attacker can pass specially crafted XML data to the application and perform a denial of service attack.

Remediation

Install update from vendor's website.

References

• https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41123/
• https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41946/