Blind VXLAN injection into encrypted overlay networks from cluster peer
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
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| Docker | Docker Engine | unaffected |
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| Docker | Docker Engine overlay network driver | unaffected |
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| Moby | Moby overlay network driver | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Docker | Docker Engine |
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| Docker | Docker Engine Overlay Network Driver |
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| Moby | Moby Overlay Network Driver |
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Vendor Workaround
Block userspace processes from sending UDP packets to the Swarm data-path port. iptables -I OUTPUT -p udp --dport "$(docker info --format '{{.Swarm.Cluster.DataPathPort}}')" -m owner --socket-exists -j DROP
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.068% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Docker
Docker docker Engine Docker docker Engine Overlay Network Driver Moby Moby moby Overlay Network Driver |
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| Vendors & Products |
Docker
Docker docker Engine Docker docker Engine Overlay Network Driver Moby Moby moby Overlay Network Driver |
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-346 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-20 CWE-284 |
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-290 | |
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-20 CWE-284 |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to | |
| Title | Blind VXLAN injection into encrypted overlay networks from cluster peer | |
| References |
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| Metrics |
cvssV4_0
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