UBUNTU-CVE-2026-56770

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Source
https://ubuntu.com/security/CVE-2026-56770
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56770.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-56770
Upstream
Published
2026-06-25T19:16:00Z
Modified
2026-06-29T23:19:15.541733358Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

libais through 0.15 VdmStream::AddLine uses an unchecked sentinel value as a vector index when processing AIS sentences with empty or out-of-range sequential message IDs. Remote attackers can crash services or vessel systems by sending crafted AIVDM sentences over VHF marine radio or IP feeds, causing out-of-bounds memory access and potential corruption.

References

Affected packages

Ubuntu:22.04:LTS / python-libais

Package

Name
python-libais
Purl
pkg:deb/ubuntu/python-libais?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.17+git.20190917.master.e464cf8-2build2
0.17+git.20190917.master.e464cf8-2build3
0.17+git.20190917.master.e464cf8-3
0.17+git.20190917.master.e464cf8-3build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libais-tools",
            "binary_version": "0.17+git.20190917.master.e464cf8-3build1"
        },
        {
            "binary_name": "python3-ais",
            "binary_version": "0.17+git.20190917.master.e464cf8-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56770.json"

Ubuntu:24.04:LTS / python-libais

Package

Name
python-libais
Purl
pkg:deb/ubuntu/python-libais?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*
0.17+git.20190917.master.e464cf8-3build3
0.17+git.20190917.master.e464cf8-4
0.17+git.20190917.master.e464cf8-4build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libais-tools",
            "binary_version": "0.17+git.20190917.master.e464cf8-4build1"
        },
        {
            "binary_name": "python3-ais",
            "binary_version": "0.17+git.20190917.master.e464cf8-4build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56770.json"

Ubuntu:25.10 / python-libais

Package

Name
python-libais
Purl
pkg:deb/ubuntu/python-libais?arch=source&distro=questing

Affected ranges

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

Affected versions

0.*
0.17+git.20190917.master.e464cf8-5build1
0.17+git.20190917.master.e464cf8-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libais-tools",
            "binary_version": "0.17+git.20190917.master.e464cf8-6"
        },
        {
            "binary_name": "python3-ais",
            "binary_version": "0.17+git.20190917.master.e464cf8-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56770.json"

Ubuntu:26.04:LTS / python-libais

Package

Name
python-libais
Purl
pkg:deb/ubuntu/python-libais?arch=source&distro=resolute

Affected ranges

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

Affected versions

0.*
0.17+git.20190917.master.e464cf8-6
0.17+git.20190917.master.e464cf8-6build1
0.17+git.20190917.master.e464cf8-6build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libais-tools",
            "binary_version": "0.17+git.20190917.master.e464cf8-6build2"
        },
        {
            "binary_name": "python3-ais",
            "binary_version": "0.17+git.20190917.master.e464cf8-6build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56770.json"