UBUNTU-CVE-2020-11612

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Source
https://ubuntu.com/security/CVE-2020-11612
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11612.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-11612
Upstream
Downstream
Related
Published
2020-04-07T18:15:00Z
Modified
2026-06-08T18:49:10Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

References

Affected packages

Ubuntu:Pro:14.04:LTS / netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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
1:3.2.6.Final-2+deb8u2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libnetty-java",
            "binary_version":  "1:3.2.6.Final-2+deb8u2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11612.json"

Ubuntu:Pro:16.04:LTS / netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty?arch=source&distro=esm-apps%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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",
    "binaries":  [
        {
            "binary_name":  "libnetty-java",
            "binary_version":  "1:4.0.34-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11612.json"

Ubuntu:18.04:LTS / netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty?arch=source&distro=bionic

Affected ranges

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

Affected versions

1:4.*
1:4.1.7-4

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libnetty-java",
            "binary_version":  "1:4.1.7-4ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11612.json"

Ubuntu:Pro:20.04:LTS / netty

Package

Name
netty
Purl
pkg:deb/ubuntu/netty?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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",
    "binaries":  [
        {
            "binary_name":  "libnetty-java",
            "binary_version":  "1:4.1.45-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11612.json"