UBUNTU-CVE-2020-24821

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Source
https://ubuntu.com/security/CVE-2020-24821
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-24821.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-24821
Upstream
Published
2021-08-04T15:15:00Z
Modified
2025-09-08T16:46:18Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A vulnerability in the dwarf::cursor::skip_form function of Libelfin v0.3 allows attackers to cause a denial of service (DOS) through a segmentation fault via a crafted ELF file.

References

Affected packages

Ubuntu:Pro:18.04:LTS / libelfin

Package

Name
libelfin
Purl
pkg:deb/ubuntu/libelfin@0.3-1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

0.*

0.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.3-1",
            "binary_name": "libdwarf++0"
        },
        {
            "binary_version": "0.3-1",
            "binary_name": "libelf++0"
        },
        {
            "binary_version": "0.3-1",
            "binary_name": "libelfin-dev"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / libelfin

Package

Name
libelfin
Purl
pkg:deb/ubuntu/libelfin@0.3-1ubuntu2?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

0.*

0.3-1
0.3-1ubuntu1
0.3-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.3-1ubuntu2",
            "binary_name": "libdwarf++0"
        },
        {
            "binary_version": "0.3-1ubuntu2",
            "binary_name": "libelf++0"
        },
        {
            "binary_version": "0.3-1ubuntu2",
            "binary_name": "libelfin-dev"
        }
    ]
}

Ubuntu:22.04:LTS / libelfin

Package

Name
libelfin
Purl
pkg:deb/ubuntu/libelfin@0.3-2.1?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*

0.3-2.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.3-2.1",
            "binary_name": "libdwarf++0"
        },
        {
            "binary_version": "0.3-2.1",
            "binary_name": "libelf++0"
        },
        {
            "binary_version": "0.3-2.1",
            "binary_name": "libelfin-dev"
        }
    ]
}

Ubuntu:24.04:LTS / libelfin

Package

Name
libelfin
Purl
pkg:deb/ubuntu/libelfin@0.3-3.1ubuntu1?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*

0.3-3
0.3-3.1
0.3-3.1build1
0.3-3.1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.3-3.1ubuntu1",
            "binary_name": "libdwarf++0t64"
        },
        {
            "binary_version": "0.3-3.1ubuntu1",
            "binary_name": "libelf++0t64"
        },
        {
            "binary_version": "0.3-3.1ubuntu1",
            "binary_name": "libelfin-dev"
        }
    ]
}

Ubuntu:25.04 / libelfin

Package

Name
libelfin
Purl
pkg:deb/ubuntu/libelfin@0.3-5?arch=source&distro=plucky

Affected ranges

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

Affected versions

0.*

0.3-3.1ubuntu1
0.3-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.3-5",
            "binary_name": "libdwarf++0t64"
        },
        {
            "binary_version": "0.3-5",
            "binary_name": "libelf++0t64"
        },
        {
            "binary_version": "0.3-5",
            "binary_name": "libelfin-dev"
        }
    ]
}