CVE-2020-25668 (GCVE-0-2020-25668)
Vulnerability from cvelistv5 – Published: 2021-05-26 11:11 – Updated: 2024-08-04 15:40
VLAI
EPSS
VEX
Summary
A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.
Severity
7.0 (High)
CWE
- CWE-362 - -> CWE-416
Assigner
References
9 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/10/30/1 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2020/11/04/3 | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2020/… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021070… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | Linux Kernel |
Affected:
5.9.2
|
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"status": "final",
"title": "kernel: race condition in fg_console can lead to use-after-free in con_font_op",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-25668.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-08-31T02:17:26Z",
"cve": "CVE-2020-25668",
"id": "CVE-2020-25668",
"initial_release_date": "2023-02-15T03:53:45Z",
"product_status:known_affected": "548",
"product_status:known_not_affected": "10",
"product_status:recommended": "1826",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2020-25668",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-25668.json",
"version": "37"
}
}
}
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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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