UBUNTU-CVE-2025-59419

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2025-59419
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59419.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-59419
Upstream
Downstream
Published
2025-10-15T16:15:00Z
Modified
2025-10-31T05:22:07Z
Severity
  • 5.5 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:25.04

netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.48-10ubuntu0.25.04.1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.1.48-10ubuntu0.25.04.1

Affected versions

1:4.*

1:4.1.48-10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:4.1.48-10ubuntu0.25.04.1",
            "binary_name": "libnetty-java"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:25.10

netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.48-10ubuntu0.25.10.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.1.48-10ubuntu0.25.10.1

Affected versions

1:4.*

1:4.1.48-10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:4.1.48-10ubuntu0.25.10.1",
            "binary_name": "libnetty-java"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:18.04:LTS

netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.7-4ubuntu0.1+esm4?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.1.7-4ubuntu0.1+esm4

Affected versions

1:4.*

1:4.1.7-4
1:4.1.7-4ubuntu0.1~esm1
1:4.1.7-4ubuntu0.1
1:4.1.7-4ubuntu0.1+esm1
1:4.1.7-4ubuntu0.1+esm2
1:4.1.7-4ubuntu0.1+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:4.1.7-4ubuntu0.1+esm4",
            "binary_name": "libnetty-java"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:20.04:LTS

netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.45-1ubuntu0.1~esm3?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.1.45-1ubuntu0.1~esm3

Affected versions

1:4.*

1:4.1.33-1
1:4.1.33-2
1:4.1.33-3
1:4.1.45-1
1:4.1.45-1ubuntu0.1~esm1
1:4.1.45-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:4.1.45-1ubuntu0.1~esm3",
            "binary_name": "libnetty-java"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:22.04:LTS

netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.48-4+deb11u2ubuntu0.1~esm2?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.1.48-4+deb11u2ubuntu0.1~esm2

Affected versions

1:4.*

1:4.1.48-4
1:4.1.48-4+deb11u1build0.22.04.1
1:4.1.48-4+deb11u2build0.22.04.1
1:4.1.48-4+deb11u2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:4.1.48-4+deb11u2ubuntu0.1~esm2",
            "binary_name": "libnetty-java"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:24.04:LTS

netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.48-9ubuntu0.1~esm2?arch=source&distro=esm-apps/noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.1.48-9ubuntu0.1~esm2

Affected versions

1:4.*

1:4.1.48-7
1:4.1.48-8
1:4.1.48-9
1:4.1.48-9ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:4.1.48-9ubuntu0.1~esm2",
            "binary_name": "libnetty-java"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}