CVE-2018-19841: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 2.5% chance of exploitation in the next 30 days.

The function WavpackVerifySingleBlock in open_utils.c in libwavpack.a in WavPack through 5.1.0 allows attackers to cause a denial-of-service (out-of-bounds read and application crash) via a crafted WavPack Lossless Audio file, as demonstrated by wvunpack.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only
• Debian Debian Linux: version 9.0 only
• Fedoraproject Fedora: version 28 only; version 29 only; version 30 only; version 31 only
• Opensuse Leap: version 15.0 only
• Wavpack Wavpack: up to and including 5.1.0

Published 2018-12-04. Last modified 2026-06-17.