UBUNTU-CVE-2025-59391

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Source
https://ubuntu.com/security/CVE-2025-59391
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59391.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-59391
Upstream
Published
2025-12-08T17:16:00Z
Modified
2025-12-11T08:51:44.930850Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before release-4.3.5-patches. An out-of-bounds read may occur when parsing certain configuration values, allowing an attacker to infer or read memory beyond string boundaries in the .rodata section. This could potentially lead to information disclosure or denial of service.

References

Affected packages

Ubuntu:18.04:LTS

libcoap

Package

Name
libcoap
Purl
pkg:deb/ubuntu/libcoap@4.1.2-1?arch=source&distro=bionic

Affected ranges

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

Affected versions

4.*

4.1.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcoap-1-0",
            "binary_version": "4.1.2-1"
        },
        {
            "binary_name": "libcoap-1-0-bin",
            "binary_version": "4.1.2-1"
        },
        {
            "binary_name": "libcoap-1-0-dev",
            "binary_version": "4.1.2-1"
        }
    ]
}

Ubuntu:20.04:LTS

libcoap2

Package

Name
libcoap2
Purl
pkg:deb/ubuntu/libcoap2@4.2.1-1?arch=source&distro=focal

Affected ranges

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

Affected versions

4.*

4.2.0-2
4.2.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcoap2",
            "binary_version": "4.2.1-1"
        },
        {
            "binary_name": "libcoap2-bin",
            "binary_version": "4.2.1-1"
        },
        {
            "binary_name": "libcoap2-dev",
            "binary_version": "4.2.1-1"
        }
    ]
}

Ubuntu:22.04:LTS

libcoap2

Package

Name
libcoap2
Purl
pkg:deb/ubuntu/libcoap2@4.2.1-1build1?arch=source&distro=jammy

Affected ranges

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

Affected versions

4.*

4.2.1-1
4.2.1-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcoap2",
            "binary_version": "4.2.1-1build1"
        },
        {
            "binary_name": "libcoap2-bin",
            "binary_version": "4.2.1-1build1"
        },
        {
            "binary_name": "libcoap2-dev",
            "binary_version": "4.2.1-1build1"
        }
    ]
}

libcoap3

Package

Name
libcoap3
Purl
pkg:deb/ubuntu/libcoap3@4.3.0-2build1?arch=source&distro=jammy

Affected ranges

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

Affected versions

4.*

4.3.0-2
4.3.0-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcoap3",
            "binary_version": "4.3.0-2build1"
        },
        {
            "binary_name": "libcoap3-bin",
            "binary_version": "4.3.0-2build1"
        },
        {
            "binary_name": "libcoap3-dev",
            "binary_version": "4.3.0-2build1"
        }
    ]
}

Ubuntu:24.04:LTS

libcoap3

Package

Name
libcoap3
Purl
pkg:deb/ubuntu/libcoap3@4.3.4-1.1build4?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*

4.3.1-2
4.3.3-1
4.3.4-1
4.3.4-1.1build2
4.3.4-1.1build3
4.3.4-1.1build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcoap3-bin",
            "binary_version": "4.3.4-1.1build4"
        },
        {
            "binary_name": "libcoap3-dev",
            "binary_version": "4.3.4-1.1build4"
        },
        {
            "binary_name": "libcoap3t64",
            "binary_version": "4.3.4-1.1build4"
        }
    ]
}

Ubuntu:25.04

libcoap3

Package

Name
libcoap3
Purl
pkg:deb/ubuntu/libcoap3@4.3.4-1.1build4?arch=source&distro=plucky

Affected ranges

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

Affected versions

4.*

4.3.4-1.1build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcoap3-bin",
            "binary_version": "4.3.4-1.1build4"
        },
        {
            "binary_name": "libcoap3-dev",
            "binary_version": "4.3.4-1.1build4"
        },
        {
            "binary_name": "libcoap3t64",
            "binary_version": "4.3.4-1.1build4"
        }
    ]
}

Ubuntu:25.10

libcoap3

Package

Name
libcoap3
Purl
pkg:deb/ubuntu/libcoap3@4.3.4-1.1build4?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*

4.3.4-1.1build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcoap3-bin",
            "binary_version": "4.3.4-1.1build4"
        },
        {
            "binary_name": "libcoap3-dev",
            "binary_version": "4.3.4-1.1build4"
        },
        {
            "binary_name": "libcoap3t64",
            "binary_version": "4.3.4-1.1build4"
        }
    ]
}