CVE-2018-18438 Integer overflow in n/a
Medium 5.5
Published
Updated
Check this codebase for CVE-2018-18438 and fix it if it is affected.
What it is: CVE-2018-18438 is a medium-severity vulnerability in Qemu Qemu, published on 19 Oct 2018. 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-2018-18438 in the wild and no public exploit code.
Affected product: Qemu Qemu. 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-2018-18438/ (Markdown: https://insights.sbomify.com/CVE-2018-18438/index.md)
Integer overflow in QEMU IOReadHandler allows attackers to execute arbitrary code or cause denial of service.
- 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-2018-18438?
CVE-2018-18438 is a medium-severity vulnerability in Qemu Qemu, published on 19 Oct 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.
Weakness: CWE-190
Which versions are affected by CVE-2018-18438?
It affects 3 products.
Products include Qemu Qemu, Redhat Enterprise Linux, Redhat Openstack.
How do I fix CVE-2018-18438?
Apply the vendor's patch.
Is CVE-2018-18438 being exploited?
There is no known exploitation of CVE-2018-18438 in the wild and no public exploit code.
Other vulnerabilities in Qemu Qemu
Sources
Also known as DEBIAN-CVE-2018-18438, GHSA-5g5x-38wg-3rxr.