UBUNTU-CVE-2018-20993

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Source
https://ubuntu.com/security/CVE-2018-20993
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20993.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-20993
Upstream
Published
2019-08-26T13:15:00Z
Modified
2025-09-08T16:45:08Z
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 - medium
Summary
[none]
Details

An issue was discovered in the yaml-rust crate before 0.4.1 for Rust. There is uncontrolled recursion during deserialization.

References

Affected packages

Ubuntu:Pro:20.04:LTS / rust-yaml-rust

Package

Name
rust-yaml-rust
Purl
pkg:deb/ubuntu/rust-yaml-rust@0.4.3-1?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

0.*

0.4.2-1
0.4.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.4.3-1",
            "binary_name": "librust-yaml-rust-dev"
        }
    ]
}

Ubuntu:22.04:LTS / rust-yaml-rust

Package

Name
rust-yaml-rust
Purl
pkg:deb/ubuntu/rust-yaml-rust@0.4.5-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*

0.4.3-1
0.4.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.4.5-1",
            "binary_name": "librust-yaml-rust-dev"
        }
    ]
}

Ubuntu:24.04:LTS / rust-yaml-rust

Package

Name
rust-yaml-rust
Purl
pkg:deb/ubuntu/rust-yaml-rust@0.4.5-1?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*

0.4.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.4.5-1",
            "binary_name": "librust-yaml-rust-dev"
        }
    ]
}

Ubuntu:25.04 / rust-yaml-rust

Package

Name
rust-yaml-rust
Purl
pkg:deb/ubuntu/rust-yaml-rust@0.4.5-1?arch=source&distro=plucky

Affected ranges

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

Affected versions

0.*

0.4.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.4.5-1",
            "binary_name": "librust-yaml-rust-dev"
        }
    ]
}