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The SSH key upload feature (lib/gitlab_keys.rb) in gitlab-shell before 1.7.3, as used in GitLab 5.0 before 5.4.1 and 6.x before 6.2.3, allows remote authenticated users to execute arbitrary commands via shell metacharacters in the public key.
No remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
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