OSV-2021-586 Use-of-uninitialized-value in void intra_prediction_angular<unsigned short>
Not scored
Published
Check this codebase for OSV-2021-586 and fix it if it is affected.
What it is: OSV-2021-586 is a vulnerability in kimageformats, published on 31 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of OSV-2021-586 in the wild and no public exploit code.
Affected packages and fixed versions:
- kimageformats (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-2021-586/ (Markdown: https://insights.sbomify.com/OSV-2021-586/index.md)
An attacker can trigger a use-of-uninitialized-value bug in the AV1 decoder, potentially leading to information disclosure.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2021-586?
OSV-2021-586 is a vulnerability in kimageformats, published on 31 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32682
Crash type: Use-of-uninitialized-value
Crash state:
void intra_prediction_angular<unsigned short>
void decode_intra_prediction_internal<unsigned short>
decode_intra_prediction
Which versions are affected by OSV-2021-586?
1 open source package ship an affected version, including kimageformats.
| Package | Affected | Fixed in |
|---|---|---|
kimageformats OSS-Fuzz | All versions | None |
How do I fix OSV-2021-586?
No fix has been published for OSV-2021-586 yet. Limit exposure of the affected software until one is available.
Is OSV-2021-586 being exploited?
There is no known exploitation of OSV-2021-586 in the wild and no public exploit code.