CVE-2020-25639 (GCVE-0-2020-25639)
Vulnerability from cvelistv5 – Published: 2021-03-04 21:56 – Updated: 2024-08-04 15:40
VLAI
EPSS
VEX
Summary
A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system.
Severity
4.4 (Medium)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1876995 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
Impacted products
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"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-28T12:03:55+00:00",
"cve": "CVE-2020-25639",
"id": "CVE-2020-25639",
"initial_release_date": "2020-08-28T00:00:00+00:00",
"product_status:known_affected": "48",
"product_status:known_not_affected": "162",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: NULL pointer dereference via nouveau ioctl can lead to DoS",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-25639.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-07-25T17:49:18Z",
"cve": "CVE-2020-25639",
"id": "CVE-2020-25639",
"initial_release_date": "2023-02-15T03:53:54Z",
"product_status:known_affected": "293",
"product_status:known_not_affected": "141",
"product_status:recommended": "1211",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2020-25639",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-25639.json",
"version": "35"
}
}
}
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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.
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.
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