SB2026031203 - Debian update for netty
Published: March 12, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Resource exhaustion (CVE-ID: CVE-2025-55163)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when handling HTTP/2 requests. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
2) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2025-58056)
The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.
The vulnerability exists due to improper validation of HTTP/1.1 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.
3) Resource exhaustion (CVE-ID: CVE-2025-58057)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in BrotliDecoder and some other decompressing decoders. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
4) Command Injection (CVE-ID: CVE-2025-59419)
The vulnerability allows a remote attacker to execute arbitrary SMTP commands.
The vulnerability exists due to insufficient input validation in the SMTP codec. A remote attacker can pass specially crafted data to the application and forge arbitrary emails from the trusted server.
5) CRLF injection (CVE-ID: CVE-2025-67735)
The vulnerability allows a remote attacker to inject arbitrary data in server response.
The vulnerability exists due to insufficient validation of attacker-supplied data in io.netty.handler.codec.http.HttpRequestEncoder. A remote attacker can pass specially crafted data to the application containing CR-LF characters and modify application behavior.
6) Information disclosure (CVE-ID: CVE-2024-29025)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in HttpPostRequestDecoder. A remote attacker can gain unauthorized access to sensitive information on the system.
Remediation
Install update from vendor's website.