CVE-2021-25683 apport improperly parses /proc/pid/stat
High 8.8
Published
Updated
Check this codebase for CVE-2021-25683 and fix it if it is affected.
What it is: CVE-2021-25683 is a high-severity vulnerability in Canonical apport, published on 11 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-25683 in the wild and no public exploit code.
Affected product: Canonical apport. 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-2021-25683/ (Markdown: https://insights.sbomify.com/CVE-2021-25683/index.md)
Improper parsing of /proc/pid/stat in apport can lead to denial of service, affecting Ubuntu systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-25683?
CVE-2021-25683 is a high-severity vulnerability in Canonical apport, published on 11 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
It was discovered that the get_starttime() function in data/apport did not properly parse the /proc/pid/stat file from the kernel.
Weakness: CWE-20
Which versions are affected by CVE-2021-25683?
It affects 1 product.
Products include Canonical Apport.
How do I fix CVE-2021-25683?
Apply the vendor's patch.
Is CVE-2021-25683 being exploited?
There is no known exploitation of CVE-2021-25683 in the wild and no public exploit code.
Other vulnerabilities in Canonical apport
Sources
Also known as GHSA-v5cq-cqrx-4rpr, UBUNTU-CVE-2021-25683.