UBUNTU-CVE-2021-3405

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Source
https://ubuntu.com/security/CVE-2021-3405
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3405.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-3405
Upstream
Published
2021-02-23T20:15:00Z
Modified
2026-01-20T17:30:11.061143Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in libebml before 1.4.2. A heap overflow bug exists in the implementation of EbmlString::ReadData and EbmlUnicodeString::ReadData in libebml.

References

Affected packages

Ubuntu:16.04:LTS / libebml

Package

Name
libebml
Purl
pkg:deb/ubuntu/libebml@1.3.3-1ubuntu0.1?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.3.1-5
1.3.3-1
1.3.3-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libebml-dev",
            "binary_version": "1.3.3-1ubuntu0.1"
        },
        {
            "binary_name": "libebml4v5",
            "binary_version": "1.3.3-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3405.json"

Ubuntu:22.04:LTS / libebml

Package

Name
libebml
Purl
pkg:deb/ubuntu/libebml@1.4.2-2?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.4.2-1
1.4.2-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libebml-dev",
            "binary_version": "1.4.2-2"
        },
        {
            "binary_name": "libebml5",
            "binary_version": "1.4.2-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3405.json"

Ubuntu:24.04:LTS / libebml

Package

Name
libebml
Purl
pkg:deb/ubuntu/libebml@1.4.5-1?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.4.4-1
1.4.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libebml-dev",
            "binary_version": "1.4.5-1"
        },
        {
            "binary_name": "libebml5",
            "binary_version": "1.4.5-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3405.json"

Ubuntu:25.10 / libebml

Package

Name
libebml
Purl
pkg:deb/ubuntu/libebml@1.4.5-1?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.4.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libebml-dev",
            "binary_version": "1.4.5-1"
        },
        {
            "binary_name": "libebml5",
            "binary_version": "1.4.5-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3405.json"