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CVE-2023-1637 is a flaw in Linux kernel x86 CPU power-management handling of suspend-to-RAM (S3) resume. The kernel did not save and restore speculative-execution model-specific registers (MSRs) during the S3 suspend/resume sequence, leaving the boot CPU susceptible to speculative-execution-based memory disclosure. The issue is classified as CWE-908, Use of Uninitialized Resource.
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9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel flaw involving saving and restoring speculative model-specific registers (MSRs) during S3 suspend and resume.
A vulnerability addressed by the Red Hat Enterprise Linux 8 kernel security advisory; no further technical details are provided in the content.
A Linux kernel issue involving failure to save and restore speculative model-specific registers during S3 suspend and resume.
A Linux kernel vulnerability addressed by the Red Hat kernel-rt update; no further technical description is provided in the advisory 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.