CVE-2023-46813 (GCVE-0-2023-46813)

Vulnerability from cvelistv5 – Published: 2023-10-27 00:00 – Updated: 2024-08-02 20:53
VLAI?
Summary
An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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