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CVE-2017-18078 is a local privilege-escalation vulnerability in systemd-tmpfiles in systemd before version 237. The flaw arises because systemd-tmpfiles attempts to perform ownership and permission changes on hardlinked files in situations where such operations should be prevented. An unprivileged local user can create or leverage a hard link to a target file they do not control, and systemd-tmpfiles may then apply privileged metadata changes to that target. This undermines intended hardlink-based access restrictions and can affect sensitive system files, including cases demonstrated against /etc/passwd.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.