UBUNTU-CVE-2020-23911

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Source
https://ubuntu.com/security/CVE-2020-23911
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-23911.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-23911
Upstream
Published
2023-07-18T14:15:00Z
Modified
2025-10-24T04:48:40Z
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 - low
Summary
[none]
Details

An issue was discovered in asn1c through v0.9.28. A NULL pointer dereference exists in the function defaulterror_logger() located in asn1fix.c. It allows an attacker to cause Denial of Service.

References

Affected packages

Ubuntu:16.04:LTS

asn1c

Package

Name
asn1c
Purl
pkg:deb/ubuntu/asn1c@0.9.24+dfsg-1?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*

0.9.24+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asn1c",
            "binary_version": "0.9.24+dfsg-1"
        }
    ],
    "priority_reason": "No real security impact as this is a command-line utility that is not generally expected to handle untrusted input."
}

Ubuntu:18.04:LTS

asn1c

Package

Name
asn1c
Purl
pkg:deb/ubuntu/asn1c@0.9.28+dfsg-2?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*

0.9.28+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asn1c",
            "binary_version": "0.9.28+dfsg-2"
        }
    ],
    "priority_reason": "No real security impact as this is a command-line utility that is not generally expected to handle untrusted input."
}

Ubuntu:20.04:LTS

asn1c

Package

Name
asn1c
Purl
pkg:deb/ubuntu/asn1c@0.9.28+dfsg-3?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*

0.9.28+dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asn1c",
            "binary_version": "0.9.28+dfsg-3"
        }
    ],
    "priority_reason": "No real security impact as this is a command-line utility that is not generally expected to handle untrusted input."
}

Ubuntu:22.04:LTS

asn1c

Package

Name
asn1c
Purl
pkg:deb/ubuntu/asn1c@0.9.28+dfsg-3?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*

0.9.28+dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asn1c",
            "binary_version": "0.9.28+dfsg-3"
        }
    ],
    "priority_reason": "No real security impact as this is a command-line utility that is not generally expected to handle untrusted input."
}

Ubuntu:24.04:LTS

asn1c

Package

Name
asn1c
Purl
pkg:deb/ubuntu/asn1c@0.9.28+dfsg-5?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*

0.9.28+dfsg-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asn1c",
            "binary_version": "0.9.28+dfsg-5"
        }
    ],
    "priority_reason": "No real security impact as this is a command-line utility that is not generally expected to handle untrusted input."
}

Ubuntu:25.04

asn1c

Package

Name
asn1c
Purl
pkg:deb/ubuntu/asn1c@0.9.28+dfsg-5?arch=source&distro=plucky

Affected ranges

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

Affected versions

0.*

0.9.28+dfsg-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asn1c",
            "binary_version": "0.9.28+dfsg-5"
        }
    ],
    "priority_reason": "No real security impact as this is a command-line utility that is not generally expected to handle untrusted input."
}

Ubuntu:25.10

asn1c

Package

Name
asn1c
Purl
pkg:deb/ubuntu/asn1c@0.9.28+dfsg-5?arch=source&distro=questing

Affected ranges

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

Affected versions

0.*

0.9.28+dfsg-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asn1c",
            "binary_version": "0.9.28+dfsg-5"
        }
    ],
    "priority_reason": "No real security impact as this is a command-line utility that is not generally expected to handle untrusted input."
}