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CVE Record

CVE-2023-52614: PM / devfreq: Fix buffer overflow in trans_stat_show

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: Fix buffer overflow in trans_stat_show Fix buffer overflow in trans_stat_show(). Convert simple snprintf to the more secure scnprintf with size of PAGE_SIZE. Add condition checking if we are exceeding PAGE_SIZE and exit early from loop. Also add at the end a warning that we exceeded PAGE_SIZE and that stats is disabled. Return -EFBIG in the case where we don't have enough space to write the full transition table. Also document in the ABI that this function can return -EFBIG error.

UnknownCVSS not scoredNot 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 bug in the devfreq power-management statistics interface. When the kernel prints device frequency transition statistics, it could write past a page-sized output buffer. Public sources show kernel fixes and downstream advisories, but no KEV listing or sourced active exploitation.

Executive priority

Prioritize normal kernel patch management, with higher urgency for internet-facing infrastructure, shared platforms, and embedded products where vendor firmware lag is common. There is no sourced active exploitation in the provided material.

Technical view

CVE-2023-52614 fixes a buffer overflow in devfreq trans_stat_show(). The patch replaces snprintf usage with bounded scnprintf, checks PAGE_SIZE exhaustion, returns -EFBIG when the transition table cannot fit, and documents that error behavior in the ABI.

Likely exposure

Exposure is most relevant to Linux systems or embedded products using affected kernel versions with devfreq enabled. The source bundle names Linux kernel versions and includes Debian LTS and Siemens advisory references, but product-level impact needs vendor confirmation.

Exploitation context

The bundle does not provide exploit details, a CVSS score, or evidence of active exploitation. KEV is false. Treat this as a kernel memory-safety issue requiring patch tracking, not as a confirmed actively exploited incident.

Researcher notes

The affected surface is the devfreq trans_stat_show() sysfs reporting path. The fix is defensive output bounding around PAGE_SIZE and an -EFBIG failure path. The bundle lacks CVSS, CWE, and exploitability analysis, so impact assessment remains constrained.

Mitigation direction

  • Update affected Linux kernels to vendor-fixed versions or packages.
  • Review Debian LTS and Siemens advisories if those environments apply.
  • For appliances, confirm the vendor firmware includes the kernel fix.
  • If no patch is available, follow vendor mitigation guidance.

Validation and detection

  • Inventory Linux kernel versions across servers, endpoints, and appliances.
  • Check whether installed kernels include the referenced stable commits or vendor backports.
  • Confirm devfreq support is present on relevant systems.
  • Track remediation status through OS, firmware, and product advisories.
Prepared
Confidence
medium
Sources
10

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-2023-52614 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
3Timeline events
3ADP providers
9Source links

SSVC decision data

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

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
other:ssvc
CVECVE Program Container
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxe552bbaf5b987f57c43e6981a452b8a3c700b1ae, e552bbaf5b987f57c43e6981a452b8a3c700b1ae, e552bbaf5b987f57c43e6981a452b8a3c700b1ae, e552bbaf5b987f57c43e6981a452b8a3c700b1ae, e552bbaf5b987f57c43e6981a452b8a3c700b1ae, e552bbaf5b987f57c43e6981a452b8a3c700b1aeunaffected
LinuxLinux3.8, 0, 5.10.216, 5.15.149, 6.1.76, 6.6.15, 6.7.3, 6.8affected
Weakness

CWE details

No CWE listed

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