GSD-2020-7065
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-7065",
"description": "In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.",
"id": "GSD-2020-7065",
"references": [
"https://www.suse.com/security/cve/CVE-2020-7065.html",
"https://www.debian.org/security/2020/dsa-4719",
"https://access.redhat.com/errata/RHSA-2020:5275",
"https://access.redhat.com/errata/RHSA-2020:3662",
"https://ubuntu.com/security/CVE-2020-7065",
"https://advisories.mageia.org/CVE-2020-7065.html",
"https://alas.aws.amazon.com/cve/html/CVE-2020-7065.html",
"https://linux.oracle.com/cve/CVE-2020-7065.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-7065"
],
"details": "In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.",
"id": "GSD-2020-7065",
"modified": "2023-12-13T01:21:51.810857Z",
"schema_version": "1.4.0"
}
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"TITLE": "mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full"
},
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}
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"credit": [
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"value": "anatoly dot trosinenko at gmail dot com"
}
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}
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"impact": {
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"attackVector": "NETWORK",
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"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
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"value": "CWE-121 Stack-based Buffer Overflow"
}
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"references": {
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"name": "USN-4330-1",
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},
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"url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
},
{
"name": "https://bugs.php.net/bug.php?id=79371",
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},
{
"name": "https://www.php.net/ChangeLog-7.php#7.4.4",
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},
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],
"discovery": "EXTERNAL"
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},
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"obtainAllPrivilege": false,
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"severity": "MEDIUM",
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"integrityImpact": "HIGH",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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}
},
"lastModifiedDate": "2021-12-02T22:09Z",
"publishedDate": "2020-04-01T04:15Z"
}
}
}
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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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