OSV-2020-940 Heap-use-after-free in surround51_to_stereo_downmix_mtx
Not scored
Published
Check this codebase for OSV-2020-940 and fix it if it is affected.
What it is: OSV-2020-940 is an use after free vulnerability in cras, published on 22 Jul 2020.
Exploitation: There is no known exploitation of OSV-2020-940 in the wild and no public exploit code.
Affected packages and fixed versions:
- cras (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-2020-940/ (Markdown: https://insights.sbomify.com/OSV-2020-940/index.md)
A heap-use-after-free vulnerability in audio downmixing allows attackers to cause crashes or potentially execute code via crafted audio data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2020-940?
OSV-2020-940 is an use after free vulnerability in cras, published on 22 Jul 2020.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21113
Crash type: Heap-use-after-free WRITE 4
Crash state:
surround51_to_stereo_downmix_mtx
cras_fmt_conv_create
config_format_converter
Which versions are affected by OSV-2020-940?
1 open source package ship an affected version, including cras.
| Package | Affected | Fixed in |
|---|---|---|
cras OSS-Fuzz | All versions | None |
How do I fix OSV-2020-940?
No fix has been published for OSV-2020-940 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2020-940 being exploited?
There is no known exploitation of OSV-2020-940 in the wild and no public exploit code.