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CVE-2021-4122 is an improper input-validation flaw in cryptsetup's handling of LUKS headers during device recovery. A specially crafted LUKS header can cause cryptsetup to disable encryption for the recovered device, rather than preserving the device's encryption configuration.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A cryptsetup vulnerability that can allow encryption to be disabled through a header rewrite, impacting Rocky Linux 8 systems with affected packages.
A cryptsetup flaw in which a maliciously crafted LUKS header can cause encryption to be disabled during device recovery, compromising the integrity of an encrypted removable medium. Exploitation requires physical access and user interaction.
Unknown; the advisory identifies it as addressed but provides no vulnerability description.
A vulnerability addressed by this advisory; no technical details are provided in the content.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.