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Fencer Intel
medium 5.5

CVE-2021-44269 json

An out of bounds read was found in Wavpack 5.4.0 in processing *.WAV files.

published 4y ago modified 4mo ago also EUVD-2021-31115

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

An out of bounds read was found in Wavpack 5.4.0 in processing *.WAV files. This issue triggered in function WavpackPackSamples of file src/pack_utils.c, tainted variable cnt is too large, that makes pointer sptr read beyond heap bound.

Patch / fix

  • wavpack Debian 14, Debian 13, Debian 12 5.5.0-1

debian advisories DEBIAN-CVE-2021-44269

  • wavpack RHEL 9 5.4.0-5.el9
  • wavpack RHEL 8 5.1.0-16.el8

red hat advisories RHSA-2022:8139RHSA-2022:7558

  • wavpack SLE Real Time 15 SP2, SLE Module for Desktop Applications 15 SP3, SLE Module for Basesystem 15 SP3 5.4.0-4.12.1

suse advisories SUSE-SU-2022:0954-1

  • wavpack openSUSE Leap 15.3 5.4.0-4.12.1

opensuse advisories openSUSE-SU-2022:0954-1

  • wavpack AlmaLinux 9 5.4.0-5.el9
  • wavpack AlmaLinux 8 5.1.0-16.el8

almalinux advisories ALSA-2022:8139ALSA-2022:7558

  • wavpack Rocky Linux 9 5.4.0-5.el9
  • wavpack Rocky Linux 8 5.1.0-16.el8

rocky linux advisories RLSA-2022:8139RLSA-2022:7558

  • wavpack Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 5.5.0-r0

alpine advisories ALPINE-CVE-2021-44269

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wavpack CBL-Mariner 2.0 5.6.0-1

azure linux advisories AZL-8977

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Is CVE-2021-44269 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-44269 updated cvss 3.5

wavpack: Heap out-of-bounds read in WavpackPackSamples()

  • Red Hat Enterprise Linux 6 wavpack Red Hat Enterprise Linux 7 wavpack
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 8) wavpack 5.1.0-16.el8
    fixed: vendor fix RHSA-2022:7558
  • Red Hat CodeReady Linux Builder (v. 9) wavpack 5.4.0-5.el9
    fixed: vendor fix RHSA-2022:8139
  • Red Hat Enterprise Linux AppStream (v. 8) wavpack 5.1.0-16.el8
    fixed: vendor fix RHSA-2022:7558
  • Red Hat Enterprise Linux AppStream (v. 9) wavpack 5.4.0-5.el9
    fixed: vendor fix RHSA-2022:8139

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/dbry/WavPack/issues/110 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.