CVE-2013-4852 (GCVE-0-2013-4852)
Vulnerability from cvelistv5 – Published: 2013-08-19 23:00 – Updated: 2024-08-06 16:59
VLAI
EPSS
VEX
Summary
Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
11 references
| URL | Tags |
|---|---|
| http://secunia.com/advisories/54533 | third-party-advisoryx_refsource_SECUNIA |
| http://secunia.com/advisories/54517 | third-party-advisoryx_refsource_SECUNIA |
| http://winscp.net/tracker/show_bug.cgi?id=1017 | x_refsource_MISC |
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=718779 | x_refsource_CONFIRM |
| http://www.search-lab.hu/advisories/secadv-20130722 | x_refsource_MISC |
| http://www.debian.org/security/2013/dsa-2736 | vendor-advisoryx_refsource_DEBIAN |
| http://svn.tartarus.org/sgt?view=revision&sortby=… | x_refsource_MISC |
| http://lists.opensuse.org/opensuse-updates/2013-0… | vendor-advisoryx_refsource_SUSE |
| http://secunia.com/advisories/54379 | third-party-advisoryx_refsource_SECUNIA |
| http://www.chiark.greenend.org.uk/~sgtatham/putty… | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-updates/2013-0… | vendor-advisoryx_refsource_SUSE |
Date Public
2013-08-05 00:00
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"criteria": "cpe:2.3:a:putty:putty:0.55:*:*:*:*:*:*:*",
"matchCriteriaId": "22EE5957-76F3-4B20-ADE7-E72D1300A3F0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:putty:putty:0.56:*:*:*:*:*:*:*",
"matchCriteriaId": "826FA7E4-7F48-4D1C-856C-A965527B0950",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:putty:putty:0.57:*:*:*:*:*:*:*",
"matchCriteriaId": "AA54ADC7-2A36-40DA-8219-DAA31509E534",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:putty:putty:0.58:*:*:*:*:*:*:*",
"matchCriteriaId": "1A14381E-91A1-4902-B409-1281CFA2D561",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:putty:putty:0.59:*:*:*:*:*:*:*",
"matchCriteriaId": "8B33EB10-535F-42F2-8F78-CE128A89447C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:putty:putty:0.60:*:*:*:*:*:*:*",
"matchCriteriaId": "218F9EAF-C260-43EC-99C4-EFACA9A1DA8D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:putty:putty:0.61:*:*:*:*:*:*:*",
"matchCriteriaId": "5966235B-2F1A-45C5-AF65-99FFFE4725DF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:putty:putty:2010-06-01:r8967:*:*:development_snapshot:*:*:*",
"matchCriteriaId": "820B9CC0-2A18-4357-B01F-565A0E35E275",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:simon_tatham:putty:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3A8E4288-5CEA-42F3-BF6A-FE7D78C907C0",
"versionEndIncluding": "0.62",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:simon_tatham:putty:0.53:*:*:*:*:*:*:*",
"matchCriteriaId": "129133D1-B374-4743-9F52-27D0A9558D17",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow."
},
{
"lang": "es",
"value": "Desbordamiento de entero en PuTTY 0.62 y anteriores, WinSCP anterior a 5.1.6, y otros productos que usan PuTTY, permite a servidores SSH remotos provocar una denegaci\u00f3n de servicio (ca\u00edda) y posiblemente ejecutar c\u00f3digo arbitrario en determinadas aplicaciones que utilizan PuTTY a trav\u00e9s de un tama\u00f1o negativo en el valor de la firma en la clave RSA durante el handshake SSH, que provoca un desbordamiento basado en memoria din\u00e1mica."
}
],
"id": "CVE-2013-4852",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2013-08-19T23:55:09.077",
"references": [
{
"source": "cve@mitre.org",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=718779"
},
{
"source": "cve@mitre.org",
"url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"
},
{
"source": "cve@mitre.org",
"url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00041.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/54379"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/54517"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/54533"
},
{
"source": "cve@mitre.org",
"url": "http://svn.tartarus.org/sgt?view=revision\u0026sortby=date\u0026revision=9896"
},
{
"source": "cve@mitre.org",
"url": "http://winscp.net/tracker/show_bug.cgi?id=1017"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-signature-stringlen.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.debian.org/security/2013/dsa-2736"
},
{
"source": "cve@mitre.org",
"url": "http://www.search-lab.hu/advisories/secadv-20130722"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=718779"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00041.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://secunia.com/advisories/54379"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/54517"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/54533"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://svn.tartarus.org/sgt?view=revision\u0026sortby=date\u0026revision=9896"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://winscp.net/tracker/show_bug.cgi?id=1017"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-signature-stringlen.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2013/dsa-2736"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.search-lab.hu/advisories/secadv-20130722"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-189"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-06-27T11:49:26+00:00",
"cve": "CVE-2013-4852",
"id": "CVE-2013-4852",
"initial_release_date": "2013-07-15T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "putty: Integer overflow, leading to heap-based buffer overflow during SSH handshake",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-4852.json",
"version": "3"
}
}
}
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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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