Bug 2268118 (CVE-2024-2201) - CVE-2024-2201 hw: cpu: intel: Native Branch History Injection (BHI)
Summary: CVE-2024-2201 hw: cpu: intel: Native Branch History Injection (BHI)
Keywords:
Status: NEW
Alias: CVE-2024-2201
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
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Depends On:
Blocks: 2012088
TreeView+ depends on / blocked
 
Reported: 2024-03-06 10:46 UTC by Rohit Keshri
Modified: 2024-04-22 00:25 UTC (History)
58 users (show)

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A flaw was found in some Intel CPUs where mitigations for the Spectre V2/BHI vulnerability were incomplete. This issue may allow an attacker to read arbitrary memory, compromising system integrity and exposing sensitive information.
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Description Rohit Keshri 2024-03-06 10:46:30 UTC 
A native Spectre-v2 exploit against the Linux kernel on last-generation Intel CPUs, based on the recent BHI variant and able to leak arbitrary kernel memory at 3.5 kB/sec. In this flaw a number of gadgets and exploitation techniques to bypass the recent FineIBT mitigation, along with a case study on a 13th Gen Intel CPU that can leak kernel memory at 18 bytes/sec.

Reference:
https://www.openwall.com/lists/oss-security/2024/04/09/15
https://www.vusec.net/projects/native-bhi/
https://download.vusec.net/papers/inspectre_sec24.pdf
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