OSV-2020-1976 Use-of-uninitialized-value in FLAC::Decoder::FuzzerStream::write_callback
Not scored
Published
Check this codebase for OSV-2020-1976 and fix it if it is affected.
What it is: OSV-2020-1976 is a vulnerability in flac, published on 3 Oct 2020.
Exploitation: There is no known exploitation of OSV-2020-1976 in the wild and no public exploit code.
Affected packages and fixed versions:
- flac (OSS-Fuzz): affected all versions; no fix listed
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/OSV-2020-1976/ (Markdown: https://insights.sbomify.com/OSV-2020-1976/index.md)
A use-of-uninitialized-value bug in the FLAC decoder's fuzzer stream callback can cause a crash, potentially leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2020-1976?
OSV-2020-1976 is a vulnerability in flac, published on 3 Oct 2020.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16503
Crash type: Use-of-uninitialized-value
Crash state:
FLAC::Decoder::FuzzerStream::write_callback
write_audio_frame_to_client_
read_frame_
Which versions are affected by OSV-2020-1976?
1 open source package ship an affected version, including flac.
| Package | Affected | Fixed in |
|---|---|---|
flac OSS-Fuzz | All versions | None |
How do I fix OSV-2020-1976?
No fix has been published for OSV-2020-1976 yet. Limit exposure of the affected software until one is available.
Is OSV-2020-1976 being exploited?
There is no known exploitation of OSV-2020-1976 in the wild and no public exploit code.