CVE-2009-2703 (GCVE-0-2009-2703)
Vulnerability from cvelistv5 – Published: 2009-09-08 18:00 – Updated: 2024-08-07 05:59
VLAI
EPSS
VEX
Summary
libpurple/protocols/irc/msgs.c in the IRC protocol plugin in libpurple in Pidgin before 2.6.2 allows remote IRC servers to cause a denial of service (NULL pointer dereference and application crash) via a TOPIC message that lacks a topic string.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
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|---|---|
| http://secunia.com/advisories/36601 | third-party-advisoryx_refsource_SECUNIA |
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| http://developer.pidgin.im/viewmtn/revision/info/… | x_refsource_CONFIRM |
| http://www.pidgin.im/news/security/index.php?id=40 | x_refsource_CONFIRM |
| https://oval.cisecurity.org/repository/search/def… | vdb-entrysignaturex_refsource_OVAL |
| http://www.securityfocus.com/bid/36277 | vdb-entryx_refsource_BID |
Date Public
2009-09-03 00:00
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},
{
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},
{
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"vulnerable": true
},
{
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"vulnerable": true
},
{
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"matchCriteriaId": "5D22A117-78BE-4BAC-8A2A-6C00C9E3A4C4",
"vulnerable": true
},
{
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"vulnerable": true
},
{
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"matchCriteriaId": "1BD203F7-B983-4FDD-9837-D68D4F388A4F",
"vulnerable": true
},
{
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"matchCriteriaId": "CB90B7CB-1A11-45A8-B0BC-9B2143D84A2F",
"vulnerable": true
},
{
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"vulnerable": true
},
{
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},
{
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"vulnerable": true
},
{
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},
{
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},
{
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},
{
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{
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{
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},
{
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},
{
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{
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},
{
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},
{
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},
{
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"matchCriteriaId": "09C407C0-99A2-477B-87CF-6BE9F7B367E7",
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},
{
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},
{
"criteria": "cpe:2.3:a:pidgin:pidgin:2.5.4:*:*:*:*:*:*:*",
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},
{
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"matchCriteriaId": "F2DD21F1-7A08-4F2D-B8EA-C02771E960FE",
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},
{
"criteria": "cpe:2.3:a:pidgin:pidgin:2.5.5:*:*:*:*:*:*:*",
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},
{
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{
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},
{
"criteria": "cpe:2.3:a:pidgin:pidgin:2.5.7:*:*:*:*:*:*:*",
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},
{
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{
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},
{
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"matchCriteriaId": "A8321D92-B935-4C2A-81B1-5984BFF4FD57",
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}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "libpurple/protocols/irc/msgs.c in the IRC protocol plugin in libpurple in Pidgin before 2.6.2 allows remote IRC servers to cause a denial of service (NULL pointer dereference and application crash) via a TOPIC message that lacks a topic string."
},
{
"lang": "es",
"value": "libpurple/protocols/irc/msgs.c en el complemento (plugin) de protocolo IRC de libpurple en Pidgin v2.6.2 permite causar a servidores IRC remotos para una denegaci\u00f3n de servicio (mediante una desreferencia a puntero NULL y caida de la aplicaci\u00f3n) a trav\u00e9s de un mensaje TOPIC que carece de una cadena de asunto."
}
],
"id": "CVE-2009-2703",
"lastModified": "2026-04-23T00:35:47.467",
"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": "2009-09-08T18:30:00.297",
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"tags": [
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],
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},
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},
{
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],
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},
{
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},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11379"
},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6435"
},
{
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},
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},
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"tags": [
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],
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},
{
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"url": "http://www.securityfocus.com/bid/36277"
},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11379"
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],
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"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
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]
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},
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"aggregate_severity": "Low",
"current_release_date": "2025-11-21T13:10:44+00:00",
"cve": "CVE-2009-2703",
"id": "CVE-2009-2703",
"initial_release_date": "2009-09-03T00:00:00+00:00",
"product_status:fixed": "279",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Pidgin: NULL pointer dereference by handling IRC topic(s) (DoS)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-2703.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2025-10-08T01:37:08Z",
"cve": "CVE-2009-2703",
"id": "CVE-2009-2703",
"initial_release_date": "2023-02-15T06:03:06Z",
"product_status:recommended": "328",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2009-2703",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2009-2703.json",
"version": "6"
}
}
}
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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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