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CVE Record

CVE-2021-32032: In Trusted Firmware-M through 1.3.0, cleaning up the memory allocated for a multi-part cryptographic operat...

In Trusted Firmware-M through 1.3.0, cleaning up the memory allocated for a multi-part cryptographic operation (in the event of a failure) can prevent the abort() operation in the associated cryptographic library from freeing internal resources, causing a memory leak.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

Trusted Firmware-M through 1.3.0 can leak memory when a failed multi-part cryptographic operation is cleaned up incorrectly. For executives, the main concern is reliability: affected embedded or firmware-based products could gradually lose resources under the right failure conditions.

Executive priority

Treat as a targeted firmware reliability risk, not an internet-wide emergency based on current evidence. Prioritize asset identification and vendor confirmation for embedded products using TF-M, especially constrained or high-availability devices.

Technical view

The CVE describes a failure-path memory-management issue in TF-M multi-part cryptographic operations. Cleanup can interfere with the cryptographic library abort() path, preventing internal resources from being freed. Public sources do not provide CVSS, CWE, affected CPEs, or confirmed exploit details.

Likely exposure

Exposure is likely limited to products or firmware images that embed Trusted Firmware-M through 1.3.0 and use multi-part cryptographic operations. Actual reachability depends on each device’s firmware integration and whether untrusted inputs can trigger repeated failure paths.

Exploitation context

CISA KEV is false, and the supplied sources do not claim active exploitation or public weaponization. The practical risk appears availability-oriented, but exploitability and impact scale are not quantified in the source bundle.

Researcher notes

The record lacks CVSS, CWE, concrete affected CPEs, and exploitation evidence. Analysis should focus on code lineage, TF-M versioning, firmware vendor integration, and whether the crypto failure path can be triggered repeatedly in deployed products.

Mitigation direction

  • Identify products or firmware builds using Trusted Firmware-M through 1.3.0.
  • Review Trusted Firmware-M advisory and referenced commit for vendor-supported remediation.
  • Apply an upstream or device-vendor firmware update when available.
  • Ask device vendors whether their builds include the relevant TF-M fix.
  • Monitor constrained devices for abnormal memory exhaustion or crypto-service failures.

Validation and detection

  • Inventory firmware components and confirm Trusted Firmware-M version usage.
  • Check whether multi-part cryptographic operations are enabled or exposed.
  • Compare local TF-M code against the referenced upstream commit.
  • Review vendor advisories for affected device-specific firmware builds.
  • Test remediation in a lab before deploying firmware updates broadly.
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-2021-32032 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
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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