UBUNTU-CVE-2024-6443

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Source
https://ubuntu.com/security/CVE-2024-6443
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-6443.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2024-6443
Upstream
Published
2024-10-04T06:15:00Z
Modified
2026-01-20T18:08:56.545169Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In utf8trunc in zephyr/lib/utils/utf8.c, lastbyte_p can point to one byte before the string pointer if the string is empty.

References

Affected packages

Ubuntu:16.04:LTS
zephyr

Package

Name
zephyr
Purl
pkg:deb/ubuntu/zephyr@3.1.2-1build1?arch=source&distro=xenial

Affected ranges

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

Affected versions

3.*
3.1.2-1
3.1.2-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libzephyr-dev",
            "binary_version": "3.1.2-1build1"
        },
        {
            "binary_name": "libzephyr4",
            "binary_version": "3.1.2-1build1"
        },
        {
            "binary_name": "libzephyr4-krb5",
            "binary_version": "3.1.2-1build1"
        },
        {
            "binary_name": "zephyr-clients",
            "binary_version": "3.1.2-1build1"
        },
        {
            "binary_name": "zephyr-server",
            "binary_version": "3.1.2-1build1"
        },
        {
            "binary_name": "zephyr-server-krb5",
            "binary_version": "3.1.2-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-6443.json"
Ubuntu:18.04:LTS
zephyr

Package

Name
zephyr
Purl
pkg:deb/ubuntu/zephyr@3.1.2-1build2?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.1.2-1build1
3.1.2-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libzephyr-dev",
            "binary_version": "3.1.2-1build2"
        },
        {
            "binary_name": "libzephyr4",
            "binary_version": "3.1.2-1build2"
        },
        {
            "binary_name": "libzephyr4-krb5",
            "binary_version": "3.1.2-1build2"
        },
        {
            "binary_name": "zephyr-clients",
            "binary_version": "3.1.2-1build2"
        },
        {
            "binary_name": "zephyr-server",
            "binary_version": "3.1.2-1build2"
        },
        {
            "binary_name": "zephyr-server-krb5",
            "binary_version": "3.1.2-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-6443.json"
Ubuntu:20.04:LTS
zephyr

Package

Name
zephyr
Purl
pkg:deb/ubuntu/zephyr@3.1.2-1build3?arch=source&distro=focal

Affected ranges

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

Affected versions

3.*
3.1.2-1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libzephyr-dev",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "libzephyr4",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "libzephyr4-krb5",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "zephyr-clients",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "zephyr-server",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "zephyr-server-krb5",
            "binary_version": "3.1.2-1build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-6443.json"
Ubuntu:22.04:LTS
zephyr

Package

Name
zephyr
Purl
pkg:deb/ubuntu/zephyr@3.1.2-1build3?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.1.2-1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libzephyr-dev",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "libzephyr4",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "libzephyr4-krb5",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "zephyr-clients",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "zephyr-server",
            "binary_version": "3.1.2-1build3"
        },
        {
            "binary_name": "zephyr-server-krb5",
            "binary_version": "3.1.2-1build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-6443.json"
Ubuntu:24.04:LTS
zephyr

Package

Name
zephyr
Purl
pkg:deb/ubuntu/zephyr@3.1.2-1.1build1?arch=source&distro=noble

Affected ranges

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

Affected versions

3.*
3.1.2-1.1
3.1.2-1.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libzephyr-dev",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "libzephyr4",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "libzephyr4-krb5",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "zephyr-clients",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "zephyr-server",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "zephyr-server-krb5",
            "binary_version": "3.1.2-1.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-6443.json"
Ubuntu:25.10
zephyr

Package

Name
zephyr
Purl
pkg:deb/ubuntu/zephyr@3.1.2-1.1build1?arch=source&distro=questing

Affected ranges

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

Affected versions

3.*
3.1.2-1.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libzephyr-dev",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "libzephyr4",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "libzephyr4-krb5",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "zephyr-clients",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "zephyr-server",
            "binary_version": "3.1.2-1.1build1"
        },
        {
            "binary_name": "zephyr-server-krb5",
            "binary_version": "3.1.2-1.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-6443.json"