GHSA-q445-7m23-qrmw openssl's `MemBio::get_buf` has undefined behavior with empty buffers
Not scored
Published
Check this codebase for GHSA-q445-7m23-qrmw and fix it if it is affected.
What it is: GHSA-q445-7m23-qrmw is a memory corruption vulnerability in openssl, published on 21 Jul 2024.
Exploitation: There is no known exploitation of GHSA-q445-7m23-qrmw in the wild and no public exploit code.
Affected packages and fixed versions:
- openssl (crates.io): affected all versions; fixed in 0.10.66
- openssl (crates.io): affected all versions; fixed in 0.10.66
- openssl (crates.io): affected from 0.0.0-0; fixed in 0.10.66
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/GHSA-q445-7m23-qrmw/ (Markdown: https://insights.sbomify.com/GHSA-q445-7m23-qrmw/index.md)
Undefined behavior in MemBio::get_buf with empty buffers can cause assertion failures or crashes in debug builds.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-q445-7m23-qrmw?
GHSA-q445-7m23-qrmw is a memory corruption vulnerability in openssl, published on 21 Jul 2024.
Official description
Previously,
MemBio::get_buf called slice::from_raw_parts with a null-pointer, which violates the functions invariants, leading to undefined behavior. In debug builds this would produce an assertion failure. This is now fixed.Which versions are affected by GHSA-q445-7m23-qrmw?
3 open source packages ship an affected version, including openssl.
| Package | Affected | Fixed in |
|---|---|---|
openssl crates.io | All versions | 0.10.66 |
openssl crates.io | All versions | 0.10.66 |
openssl crates.io | From 0.0.0-0 | 0.10.66 |
How do I fix GHSA-q445-7m23-qrmw?
Upgrade openssl to 0.10.66 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GHSA-q445-7m23-qrmw being exploited?
There is no known exploitation of GHSA-q445-7m23-qrmw in the wild and no public exploit code.
Sources
Also known as RUSTSEC-2024-0357.