CVE-2018-11806 Memory corruption in n/a
High 8.2
Published
Updated
Check this codebase for CVE-2018-11806 and fix it if it is affected.
What it is: CVE-2018-11806 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 13 Jun 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-2018-11806 in the wild and no public exploit code.
Affected product: Canonical Ubuntu Linux. 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-2018-11806/ (Markdown: https://insights.sbomify.com/CVE-2018-11806/index.md)
A heap-based buffer overflow in QEMU's SLIRP network stack allows attackers to execute arbitrary code or cause denial of service via fragmented datagrams.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-11806?
CVE-2018-11806 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 13 Jun 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
Weakness: CWE-787
Which versions are affected by CVE-2018-11806?
It affects 11 products.
Linux distribution packages (35)
qemu-img-rhev Red Hat:enterprise_linux:7::hypervisor | All versions | 10:2.10.0-21.el7_5.7 |
qemu-kvm-common-rhev Red Hat:enterprise_linux:7::hypervisor | All versions | 10:2.10.0-21.el7_5.7 |
qemu-kvm-rhev Red Hat:enterprise_linux:7::hypervisor | All versions | 10:2.10.0-21.el7_5.7 |
qemu-kvm-rhev-debuginfo Red Hat:enterprise_linux:7::hypervisor | All versions | 10:2.10.0-21.el7_5.7 |
qemu-kvm-tools-rhev Red Hat:enterprise_linux:7::hypervisor | All versions | 10:2.10.0-21.el7_5.7 |
qemu-img-ma Red Hat:enterprise_linux:7::server | All versions | 10:2.10.0-21.el7_5.4 |
qemu-kvm-common-ma Red Hat:enterprise_linux:7::server | All versions | 10:2.10.0-21.el7_5.4 |
qemu-kvm-ma Red Hat:enterprise_linux:7::server | All versions | 10:2.10.0-21.el7_5.4 |
qemu-kvm-ma-debuginfo Red Hat:enterprise_linux:7::server | All versions | 10:2.10.0-21.el7_5.4 |
qemu-kvm-tools-ma Red Hat:enterprise_linux:7::server | All versions | 10:2.10.0-21.el7_5.4 |
qemu-img-rhev Red Hat:openstack:10::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-common-rhev Red Hat:openstack:10::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev Red Hat:openstack:10::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev-debuginfo Red Hat:openstack:10::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-tools-rhev Red Hat:openstack:10::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-img-rhev Red Hat:openstack:12::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-common-rhev Red Hat:openstack:12::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev Red Hat:openstack:12::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev-debuginfo Red Hat:openstack:12::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-tools-rhev Red Hat:openstack:12::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-img-rhev Red Hat:openstack:13::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-common-rhev Red Hat:openstack:13::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev Red Hat:openstack:13::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev-debuginfo Red Hat:openstack:13::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-tools-rhev Red Hat:openstack:13::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-img-rhev Red Hat:openstack:8::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-common-rhev Red Hat:openstack:8::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev Red Hat:openstack:8::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev-debuginfo Red Hat:openstack:8::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-tools-rhev Red Hat:openstack:8::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-img-rhev Red Hat:openstack:9::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-common-rhev Red Hat:openstack:9::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev Red Hat:openstack:9::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-rhev-debuginfo Red Hat:openstack:9::el7 | All versions | 10:2.10.0-21.el7_5.6 |
qemu-kvm-tools-rhev Red Hat:openstack:9::el7 | All versions | 10:2.10.0-21.el7_5.6 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Qemu Qemu, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server and 5 more.
How do I fix CVE-2018-11806?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-11806 being exploited?
There is no known exploitation of CVE-2018-11806 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-11806, GHSA-2vg8-mhwg-wq3f, RHSA-2018:2762, RHSA-2018:2822, RHSA-2018:2887, UBUNTU-CVE-2018-11806.