Skip to content
Fencer Vulns
medium 5.5

CVE-2022-2476 json

A null pointer dereference bug was found in wavpack-5.4.0 The results from the ASAN log: AddressSanitizer:DEADLYSIGNAL ====================…

published 2022-07-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-34735

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

A null pointer dereference bug was found in wavpack-5.4.0 The results from the ASAN log: AddressSanitizer:DEADLYSIGNAL ===================================================================84257==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x561b47a970c6 bp 0x7fff13952fb0 sp 0x7fff1394fca0 T0) ==84257==The signal is caused by a WRITE memory access. ==84257==Hint: address points to the zero page. #0 0x561b47a970c5 in main cli/wvunpack.c:834 #1 0x7efc4f5c0082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) #2 0x561b47a945ed in _start (/usr/local/bin/wvunpack+0xa5ed) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV cli/wvunpack.c:834 in main ==84257==ABORTING

Patch / fix

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

debian advisories DEBIAN-CVE-2022-2476

  • wavpack Ubuntu Pro 16.04 LTS 4.75.2-2ubuntu0.2+esm1

ubuntu advisories UBUNTU-CVE-2022-2476

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wavpack SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 4.60.99-5.12.1
  • wavpack SLE Module for Desktop Applications 15 SP4, SLE Module for Desktop Applications 15 SP3, SLE Module for Basesystem 15 SP4 +3 more 5.4.0-150000.4.15.1

suse advisories SUSE-SU-2022:2682-1SUSE-SU-2022:2681-1

  • wavpack CBL-Mariner 2.0 5.6.0-1

azure linux advisories AZL-10317

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

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-2022-2476 updated cvss 3.3

wavpack: null pointer dereference in main() in cli/wvunpack.c

  • Red Hat Enterprise Linux 8 wavpack Red Hat Enterprise Linux 9 wavpack
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux 6 wavpack Red Hat Enterprise Linux 7 wavpack
    not affected: vulnerable code not present

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

0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/dbry/WavPack/issues/121 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

Affected products

  • n/a Wavpack

Classification

Weakness

References

Sources

Fencer Vulns 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.