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CVE-2021-3744 is a memory leak vulnerability in the Linux kernel, specifically in the ccp_run_aes_gcm_cmd() function within drivers/crypto/ccp/ccp-ops.c. The flaw allows attackers to trigger a memory leak by exploiting improper memory management in this function, leading to increased memory consumption over time. This issue is similar to the previously reported CVE-2019-18808.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
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.
Linux kernel crypto CCP resource-leak vulnerability in AES-GCM command handling.
Linux kernel CCP crypto-component resource-leak vulnerability in ccp_run_aes_gcm_cmd().
Linux kernel AMD CCP cryptographic-driver resource-leak flaw in ccp_run_aes_gcm_cmd().
Linux kernel CCP cryptographic-driver resource-leak issue in AES-GCM command handling.
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.