CVE-2020-13401 Improper Input Validation in Docker Engine
An attacker in a container with CAP_NET_RAW can spoof IPv6 hosts, leak information, or cause denial of service via crafted router advertisements.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-13401?
CVE-2020-13401 is a medium-severity vulnerability in Debian Debian Linux, published on 2 Jun 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.
Weakness: CWE-20
Which versions are affected by CVE-2020-13401?
2 open source packages ship an affected version, including github.com/docker/docker-ce. It affects 4 products.
| Package | Affected | Fixed in |
|---|---|---|
github.com/docker/docker-ce Go | All versions | 19.03.11 |
github.com/docker/docker-ce Go | All versions | 19.03.11 |
Linux distribution packages (16)
containerd SUSE:Linux Enterprise Module for Containers 12 | All versions | 1.2.13-16.29.1 |
docker SUSE:Linux Enterprise Module for Containers 12 | All versions | 19.03.11_ce-98.54.1 |
docker-runc SUSE:Linux Enterprise Module for Containers 12 | All versions | 1.0.0rc10+gitr3981_dc9208a3303f-1.46.1 |
golang-github-docker-libnetwork SUSE:Linux Enterprise Module for Containers 12 | All versions | 0.7.0.1+gitr2902_153d0769a118-31.1 |
containerd SUSE:Linux Enterprise Module for Containers 15 SP1 | All versions | 1.2.13-5.22.2 |
docker SUSE:Linux Enterprise Module for Containers 15 SP1 | All versions | 19.03.11_ce-6.34.2 |
docker-runc SUSE:Linux Enterprise Module for Containers 15 SP1 | All versions | 1.0.0rc10+gitr3981_dc9208a3303f-6.38.2 |
golang-github-docker-libnetwork SUSE:Linux Enterprise Module for Containers 15 SP1 | All versions | 0.7.0.1+gitr2902_153d0769a118-4.21.2 |
containerd SUSE:Linux Enterprise Module for Containers 15 SP2 | All versions | 1.2.13-5.22.2 |
docker SUSE:Linux Enterprise Module for Containers 15 SP2 | All versions | 19.03.11_ce-6.34.2 |
docker-runc SUSE:Linux Enterprise Module for Containers 15 SP2 | All versions | 1.0.0rc10+gitr3981_dc9208a3303f-6.38.2 |
golang-github-docker-libnetwork SUSE:Linux Enterprise Module for Containers 15 SP2 | All versions | 0.7.0.1+gitr2902_153d0769a118-4.21.2 |
containerd openSUSE:Leap 15.1 | All versions | 1.2.13-lp151.2.12.1 |
docker openSUSE:Leap 15.1 | All versions | 19.03.11_ce-lp151.2.18.1 |
docker-runc openSUSE:Leap 15.1 | All versions | 1.0.0rc10+gitr3981_dc9208a3303f-lp151.3.21.1 |
golang-github-docker-libnetwork openSUSE:Leap 15.1 | All versions | 0.7.0.1+gitr2902_153d0769a118-lp151.2.12.1 |
Products include Broadcom Sannav, Debian Debian Linux, Docker Engine, Fedoraproject Fedora.
How do I fix CVE-2020-13401?
Upgrade github.com/docker/docker-ce to 19.03.11 or later.
Is CVE-2020-13401 being exploited?
There is no known exploitation of CVE-2020-13401 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
- CVE-2022-2068 The c_rehash script allows command injection
- CVE-2022-28163 SQL injection in Brocade SANNav
- CVE-2020-15377 Server-side request forgery in Brocade SANnav
- CVE-2022-28165 Missing authorization in Brocade SANNav
- CVE-2025-12772 Plaintext Switch admin login password is seen in Brocade SANnav support save
Sources
Also known as CLEANSTART-2026-LO92201, DEBIAN-CVE-2020-13401, DSA-4716-1, GHSA-qrrc-ww9x-r43g, MGASA-2020-0279, SUSE-SU-2020:1657-1 and 4 more.