dbcve.org
Sound ExchangeApplication · Sound Exchange Project

CVE-2019-8357

MEDIUM · 5.5 CVSS v3.0 Published 2019-02-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
58/100
Remediation priority · Elevated
No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue was discovered in SoX 14.4.2. lsx_make_lpf in effect_i_dsp.c allows a NULL pointer dereference.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A NULL pointer dereference vulnerability exists in SoX 14.4.2 within the lsx_make_lpf function in effect_i_dsp.c. This low-pass filter processing code fails to validate a pointer before dereferencing it, leading to a crash when processing certain audio files or parameters.

MitigationUpgrade to a patched version of SoX that includes proper NULL pointer validation in the lsx_make_lpf function, or implement input validation checks before calling the affected function.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Sound ExchangeApplication
Affected:= 14.4.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify SoX installation and version
    Run 'sox --version' or 'sox -h' to display the installed version number
    Affected if The displayed version is exactly 14.4.2
  2. Identify SoX binary location
    Run 'which sox' or 'where sox' to locate the executable, then run 'ls -la <path>' to confirm the binary exists
    Affected if SoX binary exists and resolves to version 14.4.2
  3. Detect low-pass filter usage in processing
    Review any scripts, automated workflows, or manual commands that invoke SoX with the 'lowpass' effect (for example: 'sox input.wav output.wav lowpass <frequency>')
    Affected if The low-pass filter effect is being applied to audio files using SoX 14.4.2
  4. Check for crash logs or segfaults
    Review system logs (/var/log/syslog, dmesg, or application logs) for recent SoX crashes, segmentation faults, or NULL pointer dereference errors, especially when processing audio with filters
    Affected if Crashes are logged mentioning SoX and occurring during low-pass filter processing

You are affected if SoX version 14.4.2 is installed and the low-pass filter effect is used on audio files, which may cause crashes due to the NULL pointer dereference in lsx_make_lpf.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade to a patched version of SoX that includes proper NULL pointer validation in the lsx_make_lpf function, or implement input validation checks before calling the affected function.

Fix this in Sound Exchange Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing4.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,360
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,176.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2019-8357 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-8357 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data