UBUNTU-CVE-2021-43797

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Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2021-43797
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43797.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-43797
Related
Published
2021-12-09T19:15:00Z
Modified
2021-12-09T19:15:00Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.

References

Affected packages

Ubuntu:Pro:14.04:LTS / netty

Package

Name
netty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:3.*

1:3.2.6.Final-2
1:3.2.6.Final-2+deb8u2build0.14.04.1~esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.0.34-1ubuntu0.1~esm1?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.0.34-1ubuntu0.1~esm1

Affected versions

1:3.*

1:3.2.6.Final-2

1:4.*

1:4.0.32-1
1:4.0.33-1
1:4.0.34-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libnetty-java": "1:4.0.34-1ubuntu0.1~esm1"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.7-4ubuntu0.1+esm2?arch=src?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+esm2

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

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libnetty-java": "1:4.1.7-4ubuntu0.1+esm2"
        }
    ]
}

Ubuntu:20.04:LTS / netty

Package

Name
netty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:4.*

1:4.1.33-1
1:4.1.33-2
1:4.1.33-3
1:4.1.45-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:20.04:LTS / netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.45-1ubuntu0.1~esm1?arch=src?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~esm1

Affected versions

1:4.*

1:4.1.33-1
1:4.1.33-2
1:4.1.33-3
1:4.1.45-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libnetty-java": "1:4.1.45-1ubuntu0.1~esm1"
        }
    ]
}

Ubuntu:22.04:LTS / netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty@1:4.1.48-4+deb11u1build0.22.04.1?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.1.48-4+deb11u1build0.22.04.1

Affected versions

1:4.*

1:4.1.48-4

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libnetty-java": "1:4.1.48-4+deb11u1build0.22.04.1"
        }
    ]
}

Ubuntu:24.04:LTS / netty

Package

Name
netty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:4.*

1:4.1.48-7
1:4.1.48-8
1:4.1.48-9

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}