CVE-2021-36357 An issue was discovered in OpenPOWER 2.6 firmware.
Critical 9.8
Published
Updated
Check this codebase for CVE-2021-36357 and fix it if it is affected.
What it is: CVE-2021-36357 is a critical vulnerability in n/a, published on 22 Oct 2021.
Exploitation: There is no known exploitation of CVE-2021-36357 in the wild and no public exploit code.
Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.
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/CVE-2021-36357/ (Markdown: https://insights.sbomify.com/CVE-2021-36357/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2021-36357?
CVE-2021-36357 is a critical vulnerability in n/a, published on 22 Oct 2021.
Official description
An issue was discovered in OpenPOWER 2.6 firmware. unpack_timestamp() calls le32_to_cpu() for endian conversion of a uint16_t "year" value, resulting in a type mismatch that can truncate a higher integer value to a smaller one, and bypass a timestamp check. The fix is to use the right endian conversion function.
Weakness: CWE-681
Which versions are affected by CVE-2021-36357?
It affects 1 product.
Products include Openpowerfoundation Skiboot.
How do I fix CVE-2021-36357?
No fix has been published for CVE-2021-36357 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-36357 being exploited?
There is no known exploitation of CVE-2021-36357 in the wild and no public exploit code.
Sources
Also known as GHSA-6552-8jmj-f95c.