CVE-2021-33635 Pull malicious images may cause process to be hijacked
Critical 9.8
Published
Updated
Check this codebase for CVE-2021-33635 and fix it if it is affected.
What it is: CVE-2021-33635 is a critical code injection vulnerability in openEuler iSulad, published on 29 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-33635 in the wild and no public exploit code.
Affected product: openEuler iSulad. 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-2021-33635/ (Markdown: https://insights.sbomify.com/CVE-2021-33635/index.md)
Attackers can execute arbitrary code by pulling malicious images using the iSulad container engine.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-33635?
CVE-2021-33635 is a critical code injection vulnerability in openEuler iSulad, published on 29 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
When malicious images are pulled by isula pull, attackers can execute arbitrary code.
Which versions are affected by CVE-2021-33635?
It affects 1 product.
Products include Openeuler Isula.
How do I fix CVE-2021-33635?
Apply the vendor's patch.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-33635 being exploited?
There is no known exploitation of CVE-2021-33635 in the wild and no public exploit code.
Other vulnerabilities in openEuler iSulad
Sources
Also known as GHSA-r64q-rcp8-3m38.