OSV-2023-379 Heap-buffer-overflow in void sort_r_simple<>
Not scored
Published
Check this codebase for OSV-2023-379 and fix it if it is affected.
What it is: OSV-2023-379 is a memory corruption vulnerability in harfbuzz, published on 7 May 2023.
Exploitation: There is no known exploitation of OSV-2023-379 in the wild and no public exploit code.
Affected packages and fixed versions:
- harfbuzz (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-2023-379/ (Markdown: https://insights.sbomify.com/OSV-2023-379/index.md)
A heap buffer overflow in HarfBuzz's sort_r_simple function allows attackers to cause denial of service or potentially execute code via crafted font data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2023-379?
OSV-2023-379 is a memory corruption vulnerability in harfbuzz, published on 7 May 2023.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58662
Crash type: Heap-buffer-overflow READ 1
Crash state:
void sort_r_simple<>
bool OT::ClassDef::serialize<hb_sorted_array_t<hb_pair_t<unsigned int, unsigned
OT::ClassDef_remap_and_serialize
Which versions are affected by OSV-2023-379?
1 open source package ship an affected version, including harfbuzz.
| Package | Affected | Fixed in |
|---|---|---|
harfbuzz OSS-Fuzz | All versions | None |
How do I fix OSV-2023-379?
No fix has been published for OSV-2023-379 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-2023-379 being exploited?
There is no known exploitation of OSV-2023-379 in the wild and no public exploit code.