UBUNTU-CVE-2018-20991

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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
2026-05-20T16:03:38Z
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?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.6.10-1
1.*
1.1.0-1

Ecosystem specific 

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

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20991.json"

Ubuntu:22.04:LTS / rust-smallvec

Package

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

Affected ranges

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

Affected versions

1.*
1.4.2-2
1.7.0-1

Ecosystem specific 

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

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20991.json"

Ubuntu:24.04:LTS / rust-smallvec

Package

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

Affected ranges

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

Affected versions

1.*
1.11.0-1
1.11.2-1

Ecosystem specific 

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

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20991.json"

Ubuntu:25.10 / rust-smallvec

Package

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

Affected ranges

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

Affected versions

1.*
1.13.2-1

Ecosystem specific 

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

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20991.json"

Ubuntu:26.04:LTS / rust-smallvec

Package

Name
rust-smallvec
Purl
pkg:deb/ubuntu/rust-smallvec?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.13.2-1
1.15.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-smallvec-dev",
            "binary_version": "1.15.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20991.json"