CVE-2025-59419 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2025-59419 Interim 1 2 2025-12-23T00:17:02Z current 2025-11-01T00:15:44Z 2025-12-23T00:17:02Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2025-59419 Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.128.Final and 4.2.7.Final, the SMTP codec in Netty contains an SMTP command injection vulnerability due to insufficient input validation for Carriage Return (\r) and Line Feed (\n) characters in user-supplied parameters. The vulnerability exists in io.netty.handler.codec.smtp.DefaultSmtpRequest, where parameters are directly concatenated into the SMTP command string without sanitization. When methods such as SmtpRequests.rcpt(recipient) are called with a malicious string containing CRLF sequences, attackers can inject arbitrary SMTP commands. Because the injected commands are sent from the server's trusted IP address, resulting emails will likely pass SPF and DKIM authentication checks, making them appear legitimate. This allows remote attackers who can control SMTP command parameters (such as email recipients) to forge arbitrary emails from the trusted server, potentially impersonating executives and forging high-stakes corporate communications. This issue has been patched in versions 4.1.129.Final and 4.2.8.Final. No known workarounds exist. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/sle-security-updates/2025-November/023274.html E-Mail link for SUSE-SU-2025:4087-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings Container suse/manager/5.0/x86_64/server:5.0.6.7.36.2 Container suse/multi-linux-manager/5.1/x86_64/server:5.1.1.1.8.10.2 Image server-image SLES-LTSS-TERADATA 15 SP2 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise Module for Package Hub 15 SP6 SUSE Linux Enterprise Module for Package Hub 15 SP7 SUSE Linux Enterprise Server 15 SP2-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP4-TERADATA SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise Server Teradata 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Manager Server LTS 4.3 openSUSE Leap 15.6 openSUSE Tumbleweed netty netty-4.1.128-1.1 netty-4.1.128-150200.4.37.1 netty-bom-4.1.128-1.1 netty-javadoc-4.1.128-1.1 netty-javadoc-4.1.128-150200.4.37.1 netty-parent-4.1.128-1.1 netty-tcnative-2.0.74-150200.3.33.1 netty-tcnative-javadoc-2.0.74-150200.3.33.1 netty3 netty3-javadoc netty-4.1.128-150200.4.37.1 as a component of Container suse/manager/5.0/x86_64/server:5.0.6.7.36.2 netty-4.1.128-150200.4.37.1 as a component of Container suse/multi-linux-manager/5.1/x86_64/server:5.1.1.1.8.10.2 netty-4.1.128-150200.4.37.1 as a component of Image server-image netty-tcnative-2.0.74-150200.3.33.1 as a component of SUSE Linux Enterprise Module for Development Tools 15 SP6 netty-tcnative-2.0.74-150200.3.33.1 as a component of SUSE Linux Enterprise Module for Development Tools 15 SP7 netty-4.1.128-150200.4.37.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP6 netty-javadoc-4.1.128-150200.4.37.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP6 netty-4.1.128-150200.4.37.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP7 netty-javadoc-4.1.128-150200.4.37.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP7 netty-tcnative-2.0.74-150200.3.33.1 as a component of SUSE Linux Enterprise Server 15 SP4-TERADATA netty-4.1.128-150200.4.37.1 as a component of openSUSE Leap 15.6 netty-javadoc-4.1.128-150200.4.37.1 as a component of openSUSE Leap 15.6 netty-tcnative-2.0.74-150200.3.33.1 as a component of openSUSE Leap 15.6 netty-tcnative-javadoc-2.0.74-150200.3.33.1 as a component of openSUSE Leap 15.6 netty-4.1.128-1.1 as a component of openSUSE Tumbleweed netty-bom-4.1.128-1.1 as a component of openSUSE Tumbleweed netty-javadoc-4.1.128-1.1 as a component of openSUSE Tumbleweed netty-parent-4.1.128-1.1 as a component of openSUSE Tumbleweed netty3 as a component of SLES-LTSS-TERADATA 15 SP2 netty3 as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS netty3 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS netty3 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS netty3 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS netty3 as a component of SUSE Linux Enterprise Module for Development Tools 15 SP6 netty3 as a component of SUSE Linux Enterprise Module for Development Tools 15 SP7 netty3 as a component of SUSE Linux Enterprise Server 15 SP2-LTSS netty3 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS netty3 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS netty3 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS netty3 as a component of SUSE Linux Enterprise Server Teradata 15 SP4 netty3 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 netty3 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 netty3 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 netty as a component of SUSE Manager Server LTS 4.3 netty3 as a component of openSUSE Leap 15.6 netty3-javadoc as a component of openSUSE Leap 15.6 Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.128.Final and 4.2.7.Final, the SMTP codec in Netty contains an SMTP command injection vulnerability due to insufficient input validation for Carriage Return (\r) and Line Feed (\n) characters in user-supplied parameters. The vulnerability exists in io.netty.handler.codec.smtp.DefaultSmtpRequest, where parameters are directly concatenated into the SMTP command string without sanitization. When methods such as SmtpRequests.rcpt(recipient) are called with a malicious string containing CRLF sequences, attackers can inject arbitrary SMTP commands. Because the injected commands are sent from the server's trusted IP address, resulting emails will likely pass SPF and DKIM authentication checks, making them appear legitimate. This allows remote attackers who can control SMTP command parameters (such as email recipients) to forge arbitrary emails from the trusted server, potentially impersonating executives and forging high-stakes corporate communications. This issue has been patched in versions 4.1.129.Final and 4.2.8.Final. No known workarounds exist. CVE-2025-59419 Container suse/manager/5.0/x86_64/server:5.0.6.7.36.2:netty-4.1.128-150200.4.37.1 Container suse/multi-linux-manager/5.1/x86_64/server:5.1.1.1.8.10.2:netty-4.1.128-150200.4.37.1 Image server-image:netty-4.1.128-150200.4.37.1 SUSE Linux Enterprise Module for Development Tools 15 SP6:netty-tcnative-2.0.74-150200.3.33.1 SUSE Linux Enterprise Module for Development Tools 15 SP7:netty-tcnative-2.0.74-150200.3.33.1 SUSE Linux Enterprise Module for Package Hub 15 SP6:netty-4.1.128-150200.4.37.1 SUSE Linux Enterprise Module for Package Hub 15 SP6:netty-javadoc-4.1.128-150200.4.37.1 SUSE Linux Enterprise Module for Package Hub 15 SP7:netty-4.1.128-150200.4.37.1 SUSE Linux Enterprise Module for Package Hub 15 SP7:netty-javadoc-4.1.128-150200.4.37.1 SUSE Linux Enterprise Server 15 SP4-TERADATA:netty-tcnative-2.0.74-150200.3.33.1 openSUSE Leap 15.6:netty-4.1.128-150200.4.37.1 openSUSE Leap 15.6:netty-javadoc-4.1.128-150200.4.37.1 openSUSE Leap 15.6:netty-tcnative-2.0.74-150200.3.33.1 openSUSE Leap 15.6:netty-tcnative-javadoc-2.0.74-150200.3.33.1 openSUSE Tumbleweed:netty-4.1.128-1.1 openSUSE Tumbleweed:netty-bom-4.1.128-1.1 openSUSE Tumbleweed:netty-javadoc-4.1.128-1.1 openSUSE Tumbleweed:netty-parent-4.1.128-1.1 SLES-LTSS-TERADATA 15 SP2:netty3 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:netty3 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:netty3 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:netty3 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:netty3 SUSE Linux Enterprise Module for Development Tools 15 SP6:netty3 SUSE Linux Enterprise Module for Development Tools 15 SP7:netty3 SUSE Linux Enterprise Server 15 SP2-LTSS:netty3 SUSE Linux Enterprise Server 15 SP3-LTSS:netty3 SUSE Linux Enterprise Server 15 SP4-LTSS:netty3 SUSE Linux Enterprise Server 15 SP5-LTSS:netty3 SUSE Linux Enterprise Server Teradata 15 SP4:netty3 SUSE Linux Enterprise Server for SAP Applications 15 SP3:netty3 SUSE Linux Enterprise Server for SAP Applications 15 SP4:netty3 SUSE Linux Enterprise Server for SAP Applications 15 SP5:netty3 openSUSE Leap 15.6:netty3 openSUSE Leap 15.6:netty3-javadoc moderate 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N