SB2025102754 - Ubuntu update for ruby2.3

Description

This security bulletin contains information about 6 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2024-35176)

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 XML that has multiple bracket character occurrences (e.g. "<") in an attribute value. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

2) Input validation error (CVE-ID: CVE-2024-39908)

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

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass specially crafted characters, such as "<", "\0" and "%>" to the application and perform a denial of service (DoS) attack.

3) 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.

4) 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.

5) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2024-47220)

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests. A remote attacker can send a specially crafted HTTP request containing both a Content-Length header and a Transfer-Encoding header to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

6) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2025-6442)

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests within the read_header() method. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-7840-1