UBUNTU-CVE-2018-20574

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Source
https://ubuntu.com/security/CVE-2018-20574
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20574.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2018-20574
Upstream
Published
2018-12-28T16:29:00Z
Modified
2025-09-08T16:45:07Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

The SingleDocParser::HandleFlowMap function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.

References

Affected packages

Ubuntu:Pro:14.04:LTS

yaml-cpp

Package

Name
yaml-cpp
Purl
pkg:deb/ubuntu/yaml-cpp@0.5.1-1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

0.*

0.3.0-1
0.5.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libyaml-cpp-dev",
            "binary_version": "0.5.1-1"
        },
        {
            "binary_name": "libyaml-cpp0.5",
            "binary_version": "0.5.1-1"
        }
    ]
}

Ubuntu:Pro:16.04:LTS

yaml-cpp

Package

Name
yaml-cpp
Purl
pkg:deb/ubuntu/yaml-cpp@0.5.2-4ubuntu1~16.04.4?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

0.*

0.5.2-2
0.5.2-3
0.5.2-4ubuntu1~16.04.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libyaml-cpp-dev",
            "binary_version": "0.5.2-4ubuntu1~16.04.4"
        },
        {
            "binary_name": "libyaml-cpp0.5v5",
            "binary_version": "0.5.2-4ubuntu1~16.04.4"
        }
    ]
}

yaml-cpp0.3

Package

Name
yaml-cpp0.3
Purl
pkg:deb/ubuntu/yaml-cpp0.3@0.3.0-1.2?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

0.*

0.3.0-1.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libyaml-cpp0.3-dev",
            "binary_version": "0.3.0-1.2"
        },
        {
            "binary_name": "libyaml-cpp0.3v5",
            "binary_version": "0.3.0-1.2"
        }
    ]
}

Ubuntu:Pro:18.04:LTS

yaml-cpp

Package

Name
yaml-cpp
Purl
pkg:deb/ubuntu/yaml-cpp@0.5.2-4ubuntu1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

0.*

0.5.2-4ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libyaml-cpp-dev",
            "binary_version": "0.5.2-4ubuntu1"
        },
        {
            "binary_name": "libyaml-cpp0.5v5",
            "binary_version": "0.5.2-4ubuntu1"
        }
    ]
}

yaml-cpp0.3

Package

Name
yaml-cpp0.3
Purl
pkg:deb/ubuntu/yaml-cpp0.3@0.3.0-1.2?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

0.*

0.3.0-1.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libyaml-cpp0.3-dev",
            "binary_version": "0.3.0-1.2"
        },
        {
            "binary_name": "libyaml-cpp0.3v5",
            "binary_version": "0.3.0-1.2"
        }
    ]
}

Ubuntu:Pro:20.04:LTS

yaml-cpp

Package

Name
yaml-cpp
Purl
pkg:deb/ubuntu/yaml-cpp@0.6.2-4ubuntu1?arch=source&distro=esm-infra/focal

Affected ranges

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

Affected versions

0.*

0.6.2-4fakesync1
0.6.2-4ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libyaml-cpp-dev",
            "binary_version": "0.6.2-4ubuntu1"
        },
        {
            "binary_name": "libyaml-cpp0.6",
            "binary_version": "0.6.2-4ubuntu1"
        }
    ]
}