SB2022052603 - Debian update for puma
Published: May 26, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2021-41136)
The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.
The vulnerability exists due to improper validation of HTTP requests. A remote attacker can send a specially crafted HTTP header values which contain the LF character to the server and smuggle arbitrary HTTP headers.
Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.
2) Information disclosure (CVE-ID: CVE-2022-23634)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to puma may not always call close on the response body. A remote attacker can gain unauthorized access to sensitive information.
3) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2022-24790)
The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.
The vulnerability exists due to improper validation of HTTP requests. 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.