OSV-2021-365 Global-buffer-overflow in llvm_ks::StringRef::find_last_not_of
Not scored
Published
Check this codebase for OSV-2021-365 and fix it if it is affected.
What it is: OSV-2021-365 is a memory corruption vulnerability in keystone, published on 11 Feb 2021.
Exploitation: There is no known exploitation of OSV-2021-365 in the wild and no public exploit code.
Affected packages and fixed versions:
- keystone (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-2021-365/ (Markdown: https://insights.sbomify.com/OSV-2021-365/index.md)
A global buffer overflow in the LLVM support library's string trimming functions can cause a crash when processing malformed input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2021-365?
OSV-2021-365 is a memory corruption vulnerability in keystone, published on 11 Feb 2021.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30790
Crash type: Global-buffer-overflow READ 1
Crash state:
llvm_ks::StringRef::find_last_not_of
llvm_ks::StringRef::rtrim
llvm_ks::StringRef::trim
Which versions are affected by OSV-2021-365?
1 open source package ship an affected version, including keystone.
| Package | Affected | Fixed in |
|---|---|---|
keystone OSS-Fuzz | All versions | None |
How do I fix OSV-2021-365?
No fix has been published for OSV-2021-365 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-2021-365 being exploited?
There is no known exploitation of OSV-2021-365 in the wild and no public exploit code.