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Filter seccomp profile path from malicious .. and /

pull/6/head
Dr. Stefan Schimanski 2016-06-08 13:09:02 +02:00
parent 6489abe8b4
commit 6c54ceb0e4
1 changed files with 3 additions and 1 deletions
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4
pkg/kubelet/dockertools/manager.go
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@ -1015,7 +1015,9 @@ func (dm *DockerManager) getSecurityOpt(pod *api.Pod, ctrName string) ([]string,
return nil, fmt.Errorf("unknown seccomp profile option: %s", profile) return nil, fmt.Errorf("unknown seccomp profile option: %s", profile)
} }
file, err := ioutil.ReadFile(filepath.Join(dm.seccompProfileRoot, strings.TrimPrefix(profile, "localhost/"))) name := strings.TrimPrefix(profile, "localhost/")
fname := filepath.Join(dm.seccompProfileRoot, filepath.FromSlash(path.Clean("/"+name)))
file, err := ioutil.ReadFile(fname)
if err != nil { if err != nil {
return nil, err return nil, err
} }