This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-56770 →

DEBIAN-CVE-2026-56770

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 seq...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 python-libais

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 python-libais

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 python-libais

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

advisory security-tracker.debian.org