OSV-2021-1524 Heap-buffer-overflow in Canvas5Structure::NIBDecoder::decode
Not scored
Published
Check this codebase for OSV-2021-1524 and fix it if it is affected.
What it is: OSV-2021-1524 is a memory corruption vulnerability in dlplibs, published on 3 Nov 2021.
Exploitation: There is no known exploitation of OSV-2021-1524 in the wild and no public exploit code.
Affected packages and fixed versions:
- dlplibs (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-2021-1524/ (Markdown: https://insights.sbomify.com/OSV-2021-1524/index.md)
A heap-buffer-overflow in the Canvas5 NIB decoder allows attackers to cause crashes or potentially execute code via malicious input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is OSV-2021-1524?
OSV-2021-1524 is a memory corruption vulnerability in dlplibs, published on 3 Nov 2021.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40619
Crash type: Heap-buffer-overflow READ 1
Crash state:
Canvas5Structure::NIBDecoder::decode
Canvas5Structure::decodeZone5
Canvas5Parser::decode
Which versions are affected by OSV-2021-1524?
1 open source package ship an affected version, including dlplibs.
| Package | Affected | Fixed in |
|---|---|---|
dlplibs OSS-Fuzz | All versions | None |
How do I fix OSV-2021-1524?
No fix has been published for OSV-2021-1524 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-2021-1524 being exploited?
There is no known exploitation of OSV-2021-1524 in the wild and no public exploit code.