UBUNTU-CVE-2021-31566

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Source
https://ubuntu.com/security/CVE-2021-31566
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-31566.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-31566
Upstream
Downstream
Related
Published
2021-12-24T00:00:00Z
Modified
2025-09-08T16:47:08Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libarchive

Package

Name
libarchive
Purl
pkg:deb/ubuntu/libarchive@3.1.2-7ubuntu2.8+esm3?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

3.*

3.1.2-5ubuntu1
3.1.2-7ubuntu1
3.1.2-7ubuntu2
3.1.2-7ubuntu2.1
3.1.2-7ubuntu2.2
3.1.2-7ubuntu2.3
3.1.2-7ubuntu2.4
3.1.2-7ubuntu2.6
3.1.2-7ubuntu2.7
3.1.2-7ubuntu2.8
3.1.2-7ubuntu2.8+esm1
3.1.2-7ubuntu2.8+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "bsdcpio",
            "binary_version": "3.1.2-7ubuntu2.8+esm3"
        },
        {
            "binary_name": "bsdtar",
            "binary_version": "3.1.2-7ubuntu2.8+esm3"
        },
        {
            "binary_name": "libarchive-dev",
            "binary_version": "3.1.2-7ubuntu2.8+esm3"
        },
        {
            "binary_name": "libarchive13",
            "binary_version": "3.1.2-7ubuntu2.8+esm3"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / libarchive

Package

Name
libarchive
Purl
pkg:deb/ubuntu/libarchive@3.1.2-11ubuntu0.16.04.8+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

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

Affected versions

3.*

3.1.2-11build1
3.1.2-11ubuntu0.16.04.1
3.1.2-11ubuntu0.16.04.2
3.1.2-11ubuntu0.16.04.3
3.1.2-11ubuntu0.16.04.4
3.1.2-11ubuntu0.16.04.5
3.1.2-11ubuntu0.16.04.6
3.1.2-11ubuntu0.16.04.7
3.1.2-11ubuntu0.16.04.8
3.1.2-11ubuntu0.16.04.8+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "bsdcpio",
            "binary_version": "3.1.2-11ubuntu0.16.04.8+esm1"
        },
        {
            "binary_name": "bsdtar",
            "binary_version": "3.1.2-11ubuntu0.16.04.8+esm1"
        },
        {
            "binary_name": "libarchive-dev",
            "binary_version": "3.1.2-11ubuntu0.16.04.8+esm1"
        },
        {
            "binary_name": "libarchive13",
            "binary_version": "3.1.2-11ubuntu0.16.04.8+esm1"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / libarchive

Package

Name
libarchive
Purl
pkg:deb/ubuntu/libarchive@3.2.2-3.1ubuntu0.7+esm1?arch=source&distro=esm-infra/bionic

Affected ranges

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

Affected versions

3.*

3.2.2-3.1
3.2.2-3.1ubuntu0.1
3.2.2-3.1ubuntu0.2
3.2.2-3.1ubuntu0.3
3.2.2-3.1ubuntu0.4
3.2.2-3.1ubuntu0.5
3.2.2-3.1ubuntu0.6
3.2.2-3.1ubuntu0.7
3.2.2-3.1ubuntu0.7+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "bsdcpio",
            "binary_version": "3.2.2-3.1ubuntu0.7+esm1"
        },
        {
            "binary_name": "bsdtar",
            "binary_version": "3.2.2-3.1ubuntu0.7+esm1"
        },
        {
            "binary_name": "libarchive-dev",
            "binary_version": "3.2.2-3.1ubuntu0.7+esm1"
        },
        {
            "binary_name": "libarchive-tools",
            "binary_version": "3.2.2-3.1ubuntu0.7+esm1"
        },
        {
            "binary_name": "libarchive13",
            "binary_version": "3.2.2-3.1ubuntu0.7+esm1"
        }
    ]
}

Ubuntu:20.04:LTS / libarchive

Package

Name
libarchive
Purl
pkg:deb/ubuntu/libarchive@3.4.0-2ubuntu1.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.0-2ubuntu1.1

Affected versions

3.*

3.4.0-1
3.4.0-1build1
3.4.0-1ubuntu2
3.4.0-2ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libarchive-dev",
            "binary_version": "3.4.0-2ubuntu1.1"
        },
        {
            "binary_name": "libarchive-tools",
            "binary_version": "3.4.0-2ubuntu1.1"
        },
        {
            "binary_name": "libarchive13",
            "binary_version": "3.4.0-2ubuntu1.1"
        }
    ]
}