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CVE Record

CVE-2023-53434: remoteproc: imx_dsp_rproc: Add custom memory copy implementation for i.MX DSP Cores

In the Linux kernel, the following vulnerability has been resolved: remoteproc: imx_dsp_rproc: Add custom memory copy implementation for i.MX DSP Cores The IRAM is part of the HiFi DSP. According to hardware specification only 32-bits write are allowed otherwise we get a Kernel panic. Therefore add a custom memory copy and memset functions to deal with the above restriction.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel availability flaw tied to i.MX DSP cores. The DSP IRAM only accepts 32-bit writes; other write sizes can trigger a kernel panic. The practical business impact is local denial of service on affected systems, not data theft or remote compromise based on the provided sources.

Executive priority

Treat this as a targeted operational reliability risk for affected embedded Linux devices. It is not evidenced as internet-scale or data-compromise risk, but kernel panics can disrupt production systems where i.MX DSP functionality is used.

Technical view

The issue is in the Linux remoteproc imx_dsp_rproc path. The fix adds custom memcpy and memset handling so writes to HiFi DSP IRAM respect the hardware 32-bit write requirement. CVSS is 5.5 with local attack vector, low privileges, no user interaction, and high availability impact.

Likely exposure

Exposure appears limited to Linux systems using affected kernel versions with i.MX DSP remoteproc support on relevant hardware. General Linux servers without this driver and hardware path are less likely exposed. The source bundle does not provide distro-specific package names or configuration checks.

Exploitation context

The CVSS vector indicates local, low-privilege exploitation with no user interaction and availability-only impact. The CVE is not marked as CISA KEV, and the provided sources do not state active exploitation, public exploit availability, or remote attack capability.

Researcher notes

The record lacks CWE mapping and detailed affected-version ranges. Analysis should focus on the remoteproc i.MX DSP code path and whether the deployed kernel includes the custom copy and memset behavior from the stable commits.

Mitigation direction

  • Update to a kernel containing the referenced stable fixes.
  • Check Linux distribution and hardware vendor advisories for backported patches.
  • Prioritize affected i.MX embedded systems that use DSP remoteproc functionality.
  • Avoid claiming remediation complete until the running kernel is verified.

Validation and detection

  • Inventory systems running Linux on i.MX hardware with DSP support.
  • Compare running kernel versions against vendor fixed-release guidance.
  • Confirm whether the imx_dsp_rproc driver is present and used.
  • Verify the deployed kernel includes the referenced stable commits or backports.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2023-53434 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2023-53434Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxec0e5549f3586d2cb99a05edd006d722ebad912c, ec0e5549f3586d2cb99a05edd006d722ebad912c, ec0e5549f3586d2cb99a05edd006d722ebad912cunaffected
LinuxLinux5.16, 0, 6.1.30, 6.3.4, 6.4affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.