CVE-2001-1421 (GCVE-0-2001-1421)
Vulnerability from cvelistv5 – Published: 2005-03-20 05:00 – Updated: 2024-08-08 04:58
VLAI
EPSS
VEX
Summary
AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| http://www.kb.cert.org/vuls/id/JARL-569MD7 | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/3756 | vdb-entryx_refsource_BID |
| http://www.securityfocus.com/archive/1/218920 | mailing-listx_refsource_BUGTRAQ |
| https://exchange.xforce.ibmcloud.com/vulnerabilit… | vdb-entryx_refsource_XF |
| http://www.kb.cert.org/vuls/id/530299 | third-party-advisoryx_refsource_CERT-VN |
| http://www.securityfocus.com/archive/1/247707 | mailing-listx_refsource_BUGTRAQ |
Date Public
2001-10-06 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-08T04:58:11.401Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://www.kb.cert.org/vuls/id/JARL-569MD7"
},
{
"name": "3756",
"tags": [
"vdb-entry",
"x_refsource_BID",
"x_transferred"
],
"url": "http://www.securityfocus.com/bid/3756"
},
{
"name": "20011006 AIM Exploits",
"tags": [
"mailing-list",
"x_refsource_BUGTRAQ",
"x_transferred"
],
"url": "http://www.securityfocus.com/archive/1/218920"
},
{
"name": "aim-multiple-fonts-dos(7757)",
"tags": [
"vdb-entry",
"x_refsource_XF",
"x_transferred"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/7757"
},
{
"name": "VU#530299",
"tags": [
"third-party-advisory",
"x_refsource_CERT-VN",
"x_transferred"
],
"url": "http://www.kb.cert.org/vuls/id/530299"
},
{
"name": "20011230 Windows AIM Client Exploits",
"tags": [
"mailing-list",
"x_refsource_BUGTRAQ",
"x_transferred"
],
"url": "http://www.securityfocus.com/archive/1/247707"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2001-10-06T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2017-07-10T14:57:01.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://www.kb.cert.org/vuls/id/JARL-569MD7"
},
{
"name": "3756",
"tags": [
"vdb-entry",
"x_refsource_BID"
],
"url": "http://www.securityfocus.com/bid/3756"
},
{
"name": "20011006 AIM Exploits",
"tags": [
"mailing-list",
"x_refsource_BUGTRAQ"
],
"url": "http://www.securityfocus.com/archive/1/218920"
},
{
"name": "aim-multiple-fonts-dos(7757)",
"tags": [
"vdb-entry",
"x_refsource_XF"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/7757"
},
{
"name": "VU#530299",
"tags": [
"third-party-advisory",
"x_refsource_CERT-VN"
],
"url": "http://www.kb.cert.org/vuls/id/530299"
},
{
"name": "20011230 Windows AIM Client Exploits",
"tags": [
"mailing-list",
"x_refsource_BUGTRAQ"
],
"url": "http://www.securityfocus.com/archive/1/247707"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2001-1421",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "http://www.kb.cert.org/vuls/id/JARL-569MD7",
"refsource": "CONFIRM",
"url": "http://www.kb.cert.org/vuls/id/JARL-569MD7"
},
{
"name": "3756",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/3756"
},
{
"name": "20011006 AIM Exploits",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/218920"
},
{
"name": "aim-multiple-fonts-dos(7757)",
"refsource": "XF",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/7757"
},
{
"name": "VU#530299",
"refsource": "CERT-VN",
"url": "http://www.kb.cert.org/vuls/id/530299"
},
{
"name": "20011230 Windows AIM Client Exploits",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/247707"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2001-1421",
"datePublished": "2005-03-20T05:00:00.000Z",
"dateReserved": "2005-03-20T00:00:00.000Z",
"dateUpdated": "2024-08-08T04:58:11.401Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2001-1421",
"date": "2026-10-13",
"epss": "0.02424",
"percentile": "0.8378"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:aol:instant_messenger:*:*:*:*:*:*:*:*",
"matchCriteriaId": "936003CD-D839-4C67-9D2A-F0C29AED50B1",
"versionEndIncluding": "4.7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag."
}
],
"id": "CVE-2001-1421",
"lastModified": "2026-04-16T00:27:16.627",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2001-10-06T04:00:00.000",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/530299"
},
{
"source": "cve@mitre.org",
"tags": [
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/JARL-569MD7"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit"
],
"url": "http://www.securityfocus.com/archive/1/218920"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/archive/1/247707"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/bid/3756"
},
{
"source": "cve@mitre.org",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/7757"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/530299"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/JARL-569MD7"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit"
],
"url": "http://www.securityfocus.com/archive/1/218920"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/archive/1/247707"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/3756"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/7757"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
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.
Loading…
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.
Loading…