UBUNTU-CVE-2018-20991

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2018-20991
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20991.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-20991
Upstream
Published
2019-08-26T15:15:00Z
Modified
2025-10-24T04:47:19Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue was discovered in the smallvec crate before 0.6.3 for Rust. The Iterator implementation mishandles destructors, leading to a double free.

References

Affected packages

Ubuntu:20.04:LTS / rust-smallvec

Package

Name
rust-smallvec
Purl
pkg:deb/ubuntu/rust-smallvec@1.1.0-1?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*

0.6.10-1

1.*

1.1.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.1.0-1",
            "binary_name": "librust-smallvec+serde-dev"
        },
        {
            "binary_version": "1.1.0-1",
            "binary_name": "librust-smallvec-dev"
        }
    ]
}

Ubuntu:22.04:LTS / rust-smallvec

Package

Name
rust-smallvec
Purl
pkg:deb/ubuntu/rust-smallvec@1.7.0-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*

1.4.2-2
1.7.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.7.0-1",
            "binary_name": "librust-smallvec+serde-dev"
        },
        {
            "binary_version": "1.7.0-1",
            "binary_name": "librust-smallvec-dev"
        }
    ]
}

Ubuntu:24.04:LTS / rust-smallvec

Package

Name
rust-smallvec
Purl
pkg:deb/ubuntu/rust-smallvec@1.11.2-1?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*

1.11.0-1
1.11.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.11.2-1",
            "binary_name": "librust-smallvec-dev"
        }
    ]
}

Ubuntu:25.10 / rust-smallvec

Package

Name
rust-smallvec
Purl
pkg:deb/ubuntu/rust-smallvec@1.13.2-1?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*

1.13.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.13.2-1",
            "binary_name": "librust-smallvec-dev"
        }
    ]
}

Ubuntu:25.04 / rust-smallvec

Package

Name
rust-smallvec
Purl
pkg:deb/ubuntu/rust-smallvec@1.13.2-1?arch=source&distro=plucky

Affected ranges

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

Affected versions

1.*

1.13.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.13.2-1",
            "binary_name": "librust-smallvec-dev"
        }
    ]
}