FKIE_CVE-2011-4409
Vulnerability from fkie_nvd - Published: 2012-06-16 00:55 - Updated: 2026-06-16 23:34
Severity
Summary
The Ubuntu One Client for Ubuntu 10.04 LTS, 11.04, 11.10, and 12.04 LTS does not properly validate SSL certificates, which allows remote attackers to spoof a server and modify or read sensitive information via a man-in-the-middle (MITM) attack.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| canonical | ubuntu_linux | 10.04 | |
| canonical | ubuntu_linux | 11.04 | |
| canonical | ubuntu_linux | 11.10 | |
| canonical | ubuntu_linux | 12.04 |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "security@ubuntu.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.04:-:lts:*:*:*:*:*",
"matchCriteriaId": "7118F616-25CA-4E34-AA13-4D14BB62419F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*",
"matchCriteriaId": "EF49D26F-142E-468B-87C1-BABEA445255C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*",
"matchCriteriaId": "E4174F4F-149E-41A6-BBCC-D01114C05F38",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*",
"matchCriteriaId": "F5D324C4-97C7-49D3-A809-9EAD4B690C69",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Ubuntu One Client for Ubuntu 10.04 LTS, 11.04, 11.10, and 12.04 LTS does not properly validate SSL certificates, which allows remote attackers to spoof a server and modify or read sensitive information via a man-in-the-middle (MITM) attack."
},
{
"lang": "es",
"value": "Ubuntu One Client para Ubuntu 10.04 LTS, 11.04, 11.10, y 12.04 LTS no valida apropiadamente los certificados, lo que permite a atacantes remotos suplantar un servidor y modificar o leer informaci\u00f3n confidencial a trav\u00e9s de un ataque de man-in-the-middle (MITM)."
}
],
"id": "CVE-2011-4409",
"lastModified": "2026-06-16T23:34:52.983",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2012-06-16T00:55:05.657",
"references": [
{
"source": "security@ubuntu.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/49442"
},
{
"source": "security@ubuntu.com",
"tags": [
"Vendor Advisory"
],
"url": "http://ubuntu.com/usn/usn-1465-1"
},
{
"source": "security@ubuntu.com",
"tags": [
"Vendor Advisory"
],
"url": "http://ubuntu.com/usn/usn-1465-2"
},
{
"source": "security@ubuntu.com",
"url": "http://ubuntu.com/usn/usn-1465-3"
},
{
"source": "security@ubuntu.com",
"url": "http://www.osvdb.org/82748"
},
{
"source": "security@ubuntu.com",
"url": "http://www.securityfocus.com/bid/53828"
},
{
"source": "security@ubuntu.com",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/76113"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/49442"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://ubuntu.com/usn/usn-1465-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://ubuntu.com/usn/usn-1465-2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://ubuntu.com/usn/usn-1465-3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.osvdb.org/82748"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/53828"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/76113"
}
],
"sourceIdentifier": "security@ubuntu.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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