OSV-2022-563 Use-of-uninitialized-value in LZ4HC_compress_generic_noDictCtx
Not scored
Published
Check this codebase for OSV-2022-563 and fix it if it is affected.
What it is: OSV-2022-563 is a vulnerability in lz4, published on 10 Jul 2022.
Exploitation: There is no known exploitation of OSV-2022-563 in the wild and no public exploit code.
Affected packages and fixed versions:
- lz4 (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-2022-563/ (Markdown: https://insights.sbomify.com/OSV-2022-563/index.md)
An attacker can cause a denial of service in the LZ4 compression library by triggering a use-of-uninitialized-value error during compression.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-563?
OSV-2022-563 is a vulnerability in lz4, published on 10 Jul 2022.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48910
Crash type: Use-of-uninitialized-value
Crash state:
LZ4HC_compress_generic_noDictCtx
LZ4_compress_HC_extStateHC_fastReset
LZ4F_compressBlockHC
Which versions are affected by OSV-2022-563?
1 open source package ship an affected version, including lz4.
| Package | Affected | Fixed in |
|---|---|---|
lz4 OSS-Fuzz | All versions | None |
How do I fix OSV-2022-563?
No fix has been published for OSV-2022-563 yet. Limit exposure of the affected software until one is available.
Is OSV-2022-563 being exploited?
There is no known exploitation of OSV-2022-563 in the wild and no public exploit code.