CVE-2014-0044
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 · uneditedThe opus_packet_get_samples_per_frame function in client in Mumble 1.2.4 and the 1.2.3 pre-release snapshots allows remote attackers to cause a denial of service (crash) via a crafted length prefix value, which triggers a NULL pointer dereference or a heap-based buffer over-read (aka "out-of-bounds array access").
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 · high confidenceA vulnerability in the opus_packet_get_samples_per_frame function in Mumble client versions 1.2.4 and 1.2.3 allows remote attackers to cause denial of service via crafted Opus packets with malicious length prefix values, triggering NULL pointer dereference or heap-based buffer over-read (out-of-bounds array access).
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= 1.2.3= 1.2.4CVSS 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
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 checksWork through these to decide whether this CVE applies to you.
-
Check if Mumble client is installedLocate the Mumble executable on the system. On Windows, check common paths like C:\Program Files\Mumble\ or C:\Program Files (x86)\Mumble\. On Linux, check /usr/bin/mumble or via package manager (dpkg -l | grep mumble, rpm -qa | grep mumble). On macOS, check /Applications/Mumble.app.Affected if Mumble client software is found on the system
-
Determine the installed Mumble versionRun 'mumble --version' or right-click the Mumble executable, select Properties, and view the Version tab. On Linux, use 'mumble --version' or check the package details.Affected if The installed version is exactly 1.2.3 or 1.2.4
-
Verify Opus codec support is presentMumble uses Opus for audio encoding. Check if the Opus library (libopus or opus.dll) is present in the Mumble installation directory. On Windows, look for opus.dll in the Mumble folder. On Linux, check for libopus0 package or library file.Affected if Opus library files are present alongside the vulnerable Mumble installation
-
Confirm audio processing is enabledMumble must be configured to process incoming audio packets. Launch Mumble and verify the audio input/output settings are active, or check if the application has been used for voice communication.Affected if Mumble is installed and configured to process voice audio, enabling the vulnerable Opus packet parsing code path
A system is affected if Mumble client version 1.2.3 or 1.2.4 is installed with Opus codec support and is capable of receiving/processin克 Opus audio packets.
Generated from the published advisory. Verify against your own configuration.
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 dataUsers should update to a patched version of Mumble. For mitigation without patching, network-level filtering of malformed Opus packets may reduce attack surface until the update can be applied.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-0044 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2014-0044 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
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.
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.
- 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