UBUNTU-CVE-2018-20406

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Source
https://ubuntu.com/security/CVE-2018-20406
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20406.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2018-20406
Upstream
Downstream
Related
Published
2018-12-23T00:00:00Z
Modified
2025-09-08T16:45:06Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

Modules/pickle.c in Python before 3.7.1 has an integer overflow via a large LONGBINPUT value that is mishandled during a "resize to twice the size" attempt. This issue might cause memory exhaustion, but is only relevant if the pickle format is used for serializing tens or hundreds of gigabytes of data. This issue is fixed in: v3.4.10, v3.4.10rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.7rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.7, v3.6.7rc1, v3.6.7rc2, v3.6.8, v3.6.8rc1, v3.6.9, v3.6.9rc1; v3.7.1, v3.7.1rc1, v3.7.1rc2, v3.7.2, v3.7.2rc1, v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

References

Affected packages

Ubuntu:Pro:14.04:LTS / python3.4

Package

Name
python3.4
Purl
pkg:deb/ubuntu/python3.4@3.4.3-1ubuntu1~14.04.7+esm2?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.3-1ubuntu1~14.04.7+esm2

Affected versions

3.*

3.4~b1-0ubuntu3
3.4~b1-4ubuntu4
3.4~b1-4ubuntu6
3.4~b1-5ubuntu2
3.4~b2-1
3.4~b3-1ubuntu1
3.4~rc1-1build1
3.4~rc2-1
3.4~rc3-0ubuntu1
3.4.0-1
3.4.0-2ubuntu1
3.4.0-2ubuntu1.1
3.4.3-1ubuntu1~14.04.1
3.4.3-1ubuntu1~14.04.3
3.4.3-1ubuntu1~14.04.4
3.4.3-1ubuntu1~14.04.5
3.4.3-1ubuntu1~14.04.6
3.4.3-1ubuntu1~14.04.7

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "idle-python3.4"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "libpython3.4"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "libpython3.4-dev"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "libpython3.4-minimal"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "libpython3.4-stdlib"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "libpython3.4-testsuite"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "python3.4"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "python3.4-dev"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "python3.4-examples"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "python3.4-minimal"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2",
            "binary_name": "python3.4-venv"
        }
    ]
}

Ubuntu:Pro:14.04:LTS / python3.5

Package

Name
python3.5
Purl
pkg:deb/ubuntu/python3.5@3.5.2-2ubuntu0~16.04.4~14.04.1+esm1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.2-2ubuntu0~16.04.4~14.04.1+esm1

Affected versions

3.*

3.5.2-2ubuntu0~16.04.4~14.04.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "idle-python3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5-dev"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5-minimal"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5-stdlib"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5-testsuite"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5-dev"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5-examples"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5-minimal"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5-venv"
        }
    ]
}

Ubuntu:16.04:LTS / python3.5

Package

Name
python3.5
Purl
pkg:deb/ubuntu/python3.5@3.5.2-2ubuntu0~16.04.8?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.2-2ubuntu0~16.04.8

Affected versions

3.*

3.5.0-3
3.5.0-3ubuntu1
3.5.1~rc1-2ubuntu1
3.5.1-1
3.5.1-2
3.5.1-3
3.5.1-5
3.5.1-6ubuntu1
3.5.1-6ubuntu2
3.5.1-9ubuntu1
3.5.1-10
3.5.2-2~16.01
3.5.2-2~16.04
3.5.2-2ubuntu0~16.04.1
3.5.2-2ubuntu0~16.04.2
3.5.2-2ubuntu0~16.04.3
3.5.2-2ubuntu0~16.04.4
3.5.2-2ubuntu0~16.04.5

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "idle-python3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "libpython3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "libpython3.5-dev"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "libpython3.5-minimal"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "libpython3.5-stdlib"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "libpython3.5-testsuite"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "python3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "python3.5-dev"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "python3.5-examples"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "python3.5-minimal"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.8",
            "binary_name": "python3.5-venv"
        }
    ]
}

Ubuntu:18.04:LTS / python3.6

Package

Name
python3.6
Purl
pkg:deb/ubuntu/python3.6@3.6.7-1~18.04?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.7-1~18.04

Affected versions

3.*

3.6.3-1ubuntu1
3.6.4~rc1-1
3.6.4~rc1-2
3.6.4-1
3.6.4-2
3.6.4-3build1
3.6.4-4
3.6.5~rc1-1
3.6.5-3
3.6.6-1~18.04

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "idle-python3.6"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "libpython3.6"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "libpython3.6-dev"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "libpython3.6-minimal"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "libpython3.6-stdlib"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "libpython3.6-testsuite"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "python3.6"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "python3.6-dev"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "python3.6-examples"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "python3.6-minimal"
        },
        {
            "binary_version": "3.6.7-1~18.04",
            "binary_name": "python3.6-venv"
        }
    ]
}