OSV-2022-389 Global-buffer-overflow in _dwarf_pathjoinl
Not scored
Published
Check this codebase for OSV-2022-389 and fix it if it is affected.
What it is: OSV-2022-389 is a memory corruption vulnerability in libdwarf, published on 1 May 2022.
Exploitation: There is no known exploitation of OSV-2022-389 in the wild and no public exploit code.
Affected packages and fixed versions:
- libdwarf (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-2022-389/ (Markdown: https://insights.sbomify.com/OSV-2022-389/index.md)
A global buffer overflow in the DWARF path joining function can cause a crash when processing malformed debug information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-389?
OSV-2022-389 is a memory corruption vulnerability in libdwarf, published on 1 May 2022.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47150
Crash type: Global-buffer-overflow READ 1
Crash state:
_dwarf_pathjoinl
_dwarf_construct_linkedto_path
dwarf_gnu_debuglink
Which versions are affected by OSV-2022-389?
1 open source package ship an affected version, including libdwarf.
| Package | Affected | Fixed in |
|---|---|---|
libdwarf OSS-Fuzz | All versions | None |
How do I fix OSV-2022-389?
No fix has been published for OSV-2022-389 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-2022-389 being exploited?
There is no known exploitation of OSV-2022-389 in the wild and no public exploit code.