UBUNTU-CVE-2019-20021

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Source
https://ubuntu.com/security/CVE-2019-20021
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20021.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2019-20021
Upstream
Published
2019-12-27T02:15:00Z
Modified
2025-10-24T04:48:07Z
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 heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

References

Affected packages

Ubuntu:16.04:LTS / upx-ucl

Package

Name
upx-ucl
Purl
pkg:deb/ubuntu/upx-ucl@3.91-1?arch=source&distro=xenial

Affected ranges

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

Affected versions

3.*
3.91-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "upx-ucl",
            "binary_version": "3.91-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20021.json"

Ubuntu:18.04:LTS / upx-ucl

Package

Name
upx-ucl
Purl
pkg:deb/ubuntu/upx-ucl@3.94-4?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.94-2
3.94-3
3.94-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "upx-ucl",
            "binary_version": "3.94-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20021.json"

Ubuntu:20.04:LTS / upx-ucl

Package

Name
upx-ucl
Purl
pkg:deb/ubuntu/upx-ucl@3.95-2build1?arch=source&distro=focal

Affected ranges

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

Affected versions

3.*
3.95-2
3.95-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "upx-ucl",
            "binary_version": "3.95-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20021.json"