FKIE_CVE-2021-45960
Vulnerability from fkie_nvd - Published: 2022-01-01 19:15 - Updated: 2026-06-17 04:14
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/
Summary
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libexpat_project | libexpat | * | |
| tenable | nessus | * | |
| tenable | nessus | * | |
| debian | debian_linux | 10.0 | |
| debian | debian_linux | 11.0 | |
| siemens | sinema_remote_connect_server | * | |
| netapp | active_iq_unified_manager | - | |
| netapp | hci_baseboard_management_controller | h610c | |
| netapp | hci_baseboard_management_controller | h610s | |
| netapp | hci_baseboard_management_controller | h615c | |
| netapp | oncommand_workflow_automation | - | |
| netapp | solidfire_\&_hci_management_node | - |
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"value": "En Expat (tambi\u00e9n se conoce como libexpat) versiones anteriores a 2.4.3, un desplazamiento a la izquierda por 29 (o m\u00e1s) lugares en la funci\u00f3n storeAtts en el archivo xmlparse.c puede conllevar a un comportamiento incorrecto de reasignaci\u00f3n (por ejemplo, asignar muy pocos bytes, o s\u00f3lo liberar memoria)."
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"id": "CVE-2021-45960",
"lastModified": "2026-06-17T04:14:19.917",
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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