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CVE-2023-5370— arm64 boot CPUs may lack speculative execution protections

Quick assessment

Affected
FreeBSD FreeBSD
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreeBSD是FreeBSD基金会的一套类Unix操作系统。 FreeBSD存在安全漏洞，该漏洞源于arm64 boot CPU缺乏推测执行保护策略。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2023-5370

Vulnerability Information
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Vulnerability Title
arm64 boot CPUs may lack speculative execution protections
Source: CVE Program / CVE List V5
Vulnerability Description
On CPU 0 the check for the SMCCC workaround is called before SMCCC support has been initialized. This resulted in no speculative execution workarounds being installed on CPU 0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
初始化不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
FreeBSD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是FreeBSD基金会的一套类Unix操作系统。 FreeBSD存在安全漏洞，该漏洞源于arm64 boot CPU缺乏推测执行保护策略。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreeBSD FreeBSD 13.2-RELEASE ~ p4 -

II. Public POCs for CVE-2023-5370

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III. Intelligence Information for CVE-2023-5370

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Vendor Advisories for CVE-2023-5370 (1)

Other References for CVE-2023-5370 (1)

Same Patch Batch · FreeBSD · 2023-10-04 · 3 CVEs total

CVE-2023-5369 copy_file_range insufficient capability rights check
CVE-2023-5368 msdosfs data disclosure

IV. Related Vulnerabilities

Same product: FreeBSD
Same vendor: FreeBSD
Same weakness: CWE-665

V. Comments for CVE-2023-5370

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