CVE-2022-23817
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedInsufficient checking of memory buffer in AMD Secure Processor (ASP) Secure OS may allow an attacker with a malicious trusted application to read/write to the ASP Secure OS kernel virtual address space, potentially resulting in privilege escalation.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA memory buffer validation flaw in AMD Secure Processor (ASP) Secure OS allows a malicious trusted application to perform out-of-bounds read/write operations directly into the ASP Secure OS kernel virtual address space, enabling privilege escalation from trusted application level to full kernel-level control.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- High
- Privileges
- Low
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify AMD Secure Processor presenceCheck system hardware specifications or use platform-specific tools (e.g., dmidecode on Linux, or AMD PSP driver status via /proc/amd/psp) to confirm AMD Secure Processor (PSP) is present in the systemAffected if System lacks AMD Secure Processor - the vulnerability only applies to systems with this hardware component
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Identify ASP Secure OS firmware versionQuery the AMD Secure Processor firmware version through AMD-provided tools (amd-psp-doctor, or via kernel modules /dev/psp) or check BIOS/UEFI firmware version information for AMD PSP/ASP componentsAffected if Firmware version is older than the AMD-provided fixed versions for CVE-2022-23817 (compare against AMD advisory) - unpatched firmware indicates vulnerability is present
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Enumerate installed trusted applicationsList all trusted applications (TAs) loaded or registered in the AMD Secure Processor environment using AMD PSP management tools or platform security configuration interfacesAffected if Any trusted application is present - the vulnerability allows a malicious trusted application to escalate privileges; presence of untrusted or third-party TAs increases exposure
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Check trusted application execution policiesReview the trusted application execution policy configuration on the system to determine whether policies restrict which TAs can run (via AMD Secure OS configuration or platform security settings)Affected if Execution policies allow untrusted or unsigned third-party trusted applications to run without verification - indicates potential for exploitation
System is affected if it contains AMD Secure Processor hardware with unpatched ASP Secure OS firmware and permits execution of trusted applications, particularly untrusted third-party TAs, enabling the privilege escalation described in the CVE.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply AMD-provided firmware updates for the Secure Processor; verify trusted application execution policies and restrict deployment of untrusted third-party trusted applications to reduce attack surface.
- Consultation2.0 h
- Implementation3.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-23817 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-23817 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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