CVE-2022-46487

HIGH

SCONE < 5.8.0 - Improper Initialization in __scone_entry Component

Title source: llm

Description

Improper initialization of x87 and SSE floating-point configuration registers in the __scone_entry component of SCONE before 5.8.0 for Intel SGX allows a local attacker to compromise the execution integrity of floating-point operations in an enclave or access sensitive information via side-channel analysis.

References (6)

Core 6

Core References

Exploit, Third Party Advisory

https://jovanbulck.github.io/files/acsac20-fpu.pdf

Exploit, Third Party Advisory

https://jovanbulck.github.io/files/oakland24-pandora.pdf

Third Party Advisory, US Government Resource

https://nvd.nist.gov/vuln/detail/CVE-2020-0561#vulnCurrentDescriptionTitle

Third Party Advisory, US Government Resource

https://nvd.nist.gov/vuln/detail/CVE-2020-15107

Release Notes

https://sconedocs.github.io/release5.7/

Technical Description

https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/best-practices/data-operand-independent-timing-isa-guidance.html#inpage-nav-3-3

Scores

CVSS v3 7.8

EPSS 0.0060

EPSS Percentile 43.6%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-665

Status published

Products (1)

scontain/scone < 5.8.0

Published Dec 30, 2023

Tracked Since Feb 18, 2026