OSV-2023-685 Invalid-free in reset_context
Not scored
Published
Check this codebase for OSV-2023-685 and fix it if it is affected.
What it is: OSV-2023-685 is a memory corruption vulnerability in fluent-bit, published on 11 Aug 2023.
Exploitation: There is no known exploitation of OSV-2023-685 in the wild and no public exploit code.
Affected packages and fixed versions:
- fluent-bit (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-2023-685/ (Markdown: https://insights.sbomify.com/OSV-2023-685/index.md)
An invalid-free vulnerability in the cmetrics library's Prometheus decoder 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-2023-685?
OSV-2023-685 is a memory corruption vulnerability in fluent-bit, published on 11 Aug 2023.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61339
Crash type: Invalid-free
Crash state:
reset_context
cmt_decode_prometheus_create
cmetrics_decode_fuzz.c
Which versions are affected by OSV-2023-685?
1 open source package ship an affected version, including fluent-bit.
| Package | Affected | Fixed in |
|---|---|---|
fluent-bit OSS-Fuzz | All versions | None |
How do I fix OSV-2023-685?
No fix has been published for OSV-2023-685 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is OSV-2023-685 being exploited?
There is no known exploitation of OSV-2023-685 in the wild and no public exploit code.