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CVE-2024-35875 is an insufficient-entropy vulnerability in the Linux kernel's x86 Confidential Computing (CoCo) support. CoCo guests operate under a threat model in which the VM host can observe or modify nearly all guest inputs, leaving the CPU RDRAND instruction as the remaining entropy source. Before the fix, initial kernel random-number-generator seeding did not require successful RDRAND output. If RDRAND was absent or malfunctioning during boot, the RNG could initialize without a trustworthy entropy source. The fix obtains 256 bits of RDRAND output during boot and panics if this seeding fails, preventing an unsafe CoCo boot.
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A high-severity locally exploitable vulnerability affecting Google COS sys-kernel/csql-kernel-6_1 and sys-kernel/lakitu-kernel-6_1 packages prior to version 18244.85.5. The listed CVSS v3 vector indicates low attack complexity with low privileges required and high integrity and availability impact.
A Linux kernel x86 confidential-computing related vulnerability involving RNG seeding with RDRAND on CoCo systems.
Linux kernel x86 confidential-computing RNG seeding flaw fixed by requiring RDRAND seeding on CoCo systems.
Linux kernel x86 confidential-computing issue concerning RNG seeding with RDRAND on CoCo systems.
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.