[24.0 backport] client: define a "dummy" hostname to use for local connections #45962
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thaJeztah
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Signed-off-by: Sebastiaan van Stijn <github@gone.nl> (cherry picked from commit 2a59188) Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
For local communications (npipe://, unix://), the hostname is not used, but we need valid and meaningful hostname. The current code used the client's `addr` as hostname in some cases, which could contain the path for the unix-socket (`/var/run/docker.sock`), which gets rejected by go1.20.6 and go1.19.11 because of a security fix for [CVE-2023-29406 ][1], which was implemented in https://go.dev/issue/60374. Prior versions go Go would clean the host header, and strip slashes in the process, but go1.20.6 and go1.19.11 no longer do, and reject the host header. This patch introduces a `DummyHost` const, and uses this dummy host for cases where we don't need an actual hostname. Before this patch (using go1.20.6): make GO_VERSION=1.20.6 TEST_FILTER=TestAttach test-integration === RUN TestAttachWithTTY attach_test.go:46: assertion failed: error is not nil: http: invalid Host header --- FAIL: TestAttachWithTTY (0.11s) === RUN TestAttachWithoutTTy attach_test.go:46: assertion failed: error is not nil: http: invalid Host header --- FAIL: TestAttachWithoutTTy (0.02s) FAIL With this patch applied: make GO_VERSION=1.20.6 TEST_FILTER=TestAttach test-integration INFO: Testing against a local daemon === RUN TestAttachWithTTY --- PASS: TestAttachWithTTY (0.12s) === RUN TestAttachWithoutTTy --- PASS: TestAttachWithoutTTy (0.02s) PASS [1]: GHSA-f8f7-69v5-w4vx Signed-off-by: Sebastiaan van Stijn <github@gone.nl> (cherry picked from commit 92975f0) Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
For local communications (npipe://, unix://), the hostname is not used, but we need valid and meaningful hostname. The current code used the socket path as hostname, which gets rejected by go1.20.6 and go1.19.11 because of a security fix for [CVE-2023-29406 ][1], which was implemented in https://go.dev/issue/60374. Prior versions go Go would clean the host header, and strip slashes in the process, but go1.20.6 and go1.19.11 no longer do, and reject the host header. Before this patch, tests would fail on go1.20.6: === FAIL: pkg/authorization TestAuthZRequestPlugin (15.01s) time="2023-07-12T12:53:45Z" level=warning msg="Unable to connect to plugin: //tmp/authz2422457390/authz-test-plugin.sock/AuthZPlugin.AuthZReq: Post \"http://%2F%2Ftmp%2Fauthz2422457390%2Fauthz-test-plugin.sock/AuthZPlugin.AuthZReq\": http: invalid Host header, retrying in 1s" time="2023-07-12T12:53:46Z" level=warning msg="Unable to connect to plugin: //tmp/authz2422457390/authz-test-plugin.sock/AuthZPlugin.AuthZReq: Post \"http://%2F%2Ftmp%2Fauthz2422457390%2Fauthz-test-plugin.sock/AuthZPlugin.AuthZReq\": http: invalid Host header, retrying in 2s" time="2023-07-12T12:53:48Z" level=warning msg="Unable to connect to plugin: //tmp/authz2422457390/authz-test-plugin.sock/AuthZPlugin.AuthZReq: Post \"http://%2F%2Ftmp%2Fauthz2422457390%2Fauthz-test-plugin.sock/AuthZPlugin.AuthZReq\": http: invalid Host header, retrying in 4s" time="2023-07-12T12:53:52Z" level=warning msg="Unable to connect to plugin: //tmp/authz2422457390/authz-test-plugin.sock/AuthZPlugin.AuthZReq: Post \"http://%2F%2Ftmp%2Fauthz2422457390%2Fauthz-test-plugin.sock/AuthZPlugin.AuthZReq\": http: invalid Host header, retrying in 8s" authz_unix_test.go:82: Failed to authorize request Post "http://%2F%2Ftmp%2Fauthz2422457390%2Fauthz-test-plugin.sock/AuthZPlugin.AuthZReq": http: invalid Host header [1]: GHSA-f8f7-69v5-w4vx Signed-off-by: Sebastiaan van Stijn <github@gone.nl> (cherry picked from commit 6b7705d) Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl> (cherry picked from commit e1db9e9) Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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@neersighted @corhere PTAL |
neersighted
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Jul 14, 2023
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I'll bring this one in 👍 |
matthewpi
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Jul 15, 2023
This updates the docker client to include the fix added with moby/moby#45962 which solves a breaking change to Go due to CVE-2023-29406.
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ℹ️ Minor conflict in a code comment, which was added in a6048fc, and is not part of this branch.
For local communications (npipe://, unix://), the hostname is not used, but we need valid and meaningful hostname.
The current code used the client's
addras hostname in some cases, which could contain the path for the unix-socket (/var/run/docker.sock), which gets rejected by go1.20.6 and go1.19.11 because of a security fix for CVE-2023-29406 , which was implemented in https://go.dev/issue/60374.Prior versions go Go would clean the host header, and strip slashes in the process, but go1.20.6 and go1.19.11 no longer do, and reject the host header.
This patch introduces a
DummyHostconst, and uses this dummy host for cases where we don't need an actual hostname.Before this patch (using go1.20.6):
With this patch applied:
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