OSV-2022-674 Use-of-uninitialized-value in cdef_filter_block_c
Not scored
Published
Check this codebase for OSV-2022-674 and fix it if it is affected.
What it is: OSV-2022-674 is a vulnerability in dav1d, published on 6 Aug 2022. 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-2022-674 in the wild and no public exploit code.
Affected packages and fixed versions:
- dav1d (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-2022-674/ (Markdown: https://insights.sbomify.com/OSV-2022-674/index.md)
An attacker can cause a denial of service in the dav1d AV1 decoder by triggering a use-of-uninitialized-value bug in the cdef filter block.
- 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-2022-674?
OSV-2022-674 is a vulnerability in dav1d, published on 6 Aug 2022. 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=49787
Crash type: Use-of-uninitialized-value
Crash state:
cdef_filter_block_c
cdef_filter_block_8x8_c
dav1d_cdef_brow_8bpc
Which versions are affected by OSV-2022-674?
1 open source package ship an affected version, including dav1d.
| Package | Affected | Fixed in |
|---|---|---|
dav1d OSS-Fuzz | All versions | None |
How do I fix OSV-2022-674?
No fix has been published for OSV-2022-674 yet. Limit exposure of the affected software until one is available.
Is OSV-2022-674 being exploited?
There is no known exploitation of OSV-2022-674 in the wild and no public exploit code.