CVE-2021-31811 (GCVE-0-2021-31811)
Vulnerability from cvelistv5 – Published: 2021-06-12 09:45 – Updated: 2024-08-03 23:10
VLAI
EPSS
VEX
Title
A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading a tiny file
Summary
In Apache PDFBox, a carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue affects Apache PDFBox version 2.0.23 and prior 2.0.x versions.
Severity
5.5 (Medium)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
17 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apache Software Foundation | Apache PDFBox |
Affected:
Apache PDFBox , < 2.0.24
(custom)
|
guessed |
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{
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"value": "En Apache PDFBox, un archivo PDF cuidadosamente dise\u00f1ado puede desencadenar una excepci\u00f3n OutOfMemory-Exception mientras se carga el archivo. Este problema afecta a la versi\u00f3n 2.0.23 de Apache PDFBox anterior a versiones 2.0.x"
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"matchCriteriaId": "609645BF-B34F-40AC-B9C9-C3FB870F4ED2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:outside_in_technology:8.5.5:*:*:*:*:*:*:*",
"matchCriteriaId": "3198F822-43F8-4CB3-97F7-C2982FDA5CBD",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:primavera_unifier:*:*:*:*:*:*:*:*",
"matchCriteriaId": "08FA59A8-6A62-4B33-8952-D6E658F8DAC9",
"versionEndIncluding": "17.12",
"versionStartIncluding": "17.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:primavera_unifier:18.8:*:*:*:*:*:*:*",
"matchCriteriaId": "202AD518-2E9B-4062-B063-9858AE1F9CE2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:primavera_unifier:19.12:*:*:*:*:*:*:*",
"matchCriteriaId": "10864586-270E-4ACF-BDCC-ECFCD299305F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:primavera_unifier:20.12:*:*:*:*:*:*:*",
"matchCriteriaId": "38340E3C-C452-4370-86D4-355B6B4E0A06",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:retail_customer_management_and_segmentation_foundation:18.1:*:*:*:*:*:*:*",
"matchCriteriaId": "DEF0F1CA-9849-43FB-9AB2-67A07AC058D1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:oracle:communications_messaging_server:8.1:*:*:*:*:*:*:*",
"matchCriteriaId": "7569C0BD-16C1-441E-BAEB-840C94BE73EF",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In Apache PDFBox, a carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue affects Apache PDFBox version 2.0.23 and prior 2.0.x versions."
},
{
"lang": "es",
"value": "En Apache PDFBox, un archivo PDF cuidadosamente dise\u00f1ado puede desencadenar una excepci\u00f3n OutOfMemory-Exception mientras se carga el archivo. Este problema afecta a la versi\u00f3n 2.0.23 de Apache PDFBox anterior a versiones 2.0.x"
}
],
"id": "CVE-2021-31811",
"lastModified": "2024-11-21T06:06:16.490",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-06-12T10:15:07.517",
"references": [
{
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"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2021/06/12/2"
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{
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],
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{
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"tags": [
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],
"sourceIdentifier": "security@apache.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-789"
}
],
"source": "security@apache.org",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-770"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2025-11-21T16:14:20+00:00",
"cve": "CVE-2021-31811",
"id": "CVE-2021-31811",
"initial_release_date": "2021-06-12T00:00:00+00:00",
"product_status:fixed": "1",
"product_status:known_affected": "6",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "pdfbox: OutOfMemory-Exception while loading a crafted PDF file",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-31811.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-16T00:15:37Z",
"cve": "CVE-2021-31811",
"id": "CVE-2021-31811",
"initial_release_date": "2023-02-15T03:41:17Z",
"product_status:known_not_affected": "24",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2021-31811",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-31811.json",
"version": "10"
}
}
}
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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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