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DEBIAN-CVE-2026-56770

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-56770

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-56770

python-libais

Source reference: /affected/0/package/name

Affected versions
0.17+git.20190917.master.e464cf8-3

Source reference: /affected/0/versions

0.17+git.20190917.master.e464cf8-4

Source reference: /affected/0/versions

0.17+git.20190917.master.e464cf8-5

Source reference: /affected/0/versions

0.17+git.20190917.master.e464cf8-6

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

python-libais

Source reference: /affected/1/package/name

Affected versions
0.17+git.20190917.master.e464cf8-5

Source reference: /affected/1/versions

0.17+git.20190917.master.e464cf8-6

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

python-libais

Source reference: /affected/2/package/name

Affected versions
0.17+git.20190917.master.e464cf8-5

Source reference: /affected/2/versions

0.17+git.20190917.master.e464cf8-6

Source reference: /affected/2/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "python-libais",
      "purl": "pkg:deb/debian/python-libais?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "0.17+git.20190917.master.e464cf8-3",
      "0.17+git.20190917.master.e464cf8-4",
      "0.17+git.20190917.master.e464cf8-5",
      "0.17+git.20190917.master.e464cf8-6"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56770.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "python-libais",
      "purl": "pkg:deb/debian/python-libais?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "0.17+git.20190917.master.e464cf8-5",
      "0.17+git.20190917.master.e464cf8-6"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56770.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "python-libais",
      "purl": "pkg:deb/debian/python-libais?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "0.17+git.20190917.master.e464cf8-5",
      "0.17+git.20190917.master.e464cf8-6"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56770.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57401 · Revision 1
Added to Heist Feed
Publisher date
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