Libpulse BindingApplication · Libpulse Binding Project
CVE-2018-25027
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 · uneditedAn issue was discovered in the libpulse-binding crate before 1.2.1 for Rust. get_format_info can cause a use-after-free.
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 confidenceA use-after-free vulnerability exists in the libpulse-binding Rust crate (versions before 1.2.1) in the get_format_info function. This memory safety issue could allow an attacker to potentially execute arbitrary code or cause a denial of service by accessing memory that has been freed.
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
Libpulse BindingApplication
< 1.2.1CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 checksWork through these to decide whether this CVE applies to you.
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Locate libpulse-binding in your Rust project dependenciesSearch your project directory for Cargo.toml and Cargo.lock files and look for 'libpulse-binding' or 'libpulse' in the dependencies sectionAffected if libpulse-binding is listed as a dependency and the version is below 1.2.1
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Identify the installed version of libpulse-bindingOpen Cargo.lock and find the [[package]] entry for libpulse-binding, then read the version field next to name = "libpulse-binding"Affected if The version listed is less than 1.2.1 (e.g., 1.2.0, 1.1.0, etc.)
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Determine if get_format_info function is called in your codeSearch your source code files for any invocations of get_format_info or similar PulseAudio format info retrieval functions that interact with the libpulse-binding APIAffected if Your code calls the get_format_info function from libpulse-binding
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Verify PulseAudio is in useCheck if your system or application environment uses PulseAudio for audio handling - look for pulseaudio process running or pulse-related configuration filesAffected if PulseAudio is active and your application uses libpulse-binding to interface with it
You are affected if your project depends on libpulse-binding version below 1.2.1 and your code or a dependency calls the get_format_info function while using PulseAudio.
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.
dbcve · scoped1.2.1
Upgrade libpulse-binding to version 1.2.1 or later. Conduct a dependency audit to identify all applications and crates that depend on the affected library and verify the fix in each.
libpulse-binding version 1.2.1
- Update the Cargo.toml dependency specification for libpulse-binding to version 1.2.1 or later
- Run `cargo update` to fetch the updated dependency
- Rebuild the project with `cargo build` to ensure the fixed version is compiled in
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Libpulse Binding
Scoped from the published advisory
- Consultation4.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,392.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-25027 — 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-2018-25027 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
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- Version or environment caveats, and links to real fixes
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