Vulnerability-Lookup

FKIE_CVE-2015-2157

Vulnerability from fkie_nvd - Published: 2015-03-27 14:59 - Updated: 2026-06-17 00:23

Severity

Summary

The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory.

References

URL	Tags
cve@mitre.org	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html
cve@mitre.org	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html
cve@mitre.org	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html
cve@mitre.org	http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html
cve@mitre.org	http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html	Patch, Vendor Advisory
cve@mitre.org	http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html	Patch, Vendor Advisory
cve@mitre.org	http://www.debian.org/security/2015/dsa-3190
cve@mitre.org	http://www.openwall.com/lists/oss-security/2015/02/28/4
cve@mitre.org	http://www.openwall.com/lists/oss-security/2015/02/28/5
cve@mitre.org	http://www.securityfocus.com/bid/72825
af854a3a-2127-422b-91ae-364da2661108	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html
af854a3a-2127-422b-91ae-364da2661108	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html
af854a3a-2127-422b-91ae-364da2661108	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html
af854a3a-2127-422b-91ae-364da2661108	http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html	Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html	Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.debian.org/security/2015/dsa-3190
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2015/02/28/4
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2015/02/28/5
af854a3a-2127-422b-91ae-364da2661108	http://www.securityfocus.com/bid/72825

Impacted products

Vendor	Product	Version
debian	debian_linux	7.0
fedoraproject	fedora	20
fedoraproject	fedora	22
opensuse	opensuse	13.1
opensuse	opensuse	13.2
putty	putty	0.51
putty	putty	0.52
putty	putty	0.53b
putty	putty	0.54
putty	putty	0.55
putty	putty	0.56
putty	putty	0.57
putty	putty	0.58
putty	putty	0.59
putty	putty	0.60
putty	putty	0.61
putty	putty	0.62
putty	putty	0.63
simon_tatham	putty	0.53

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
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            },
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          ],
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory."
    },
    {
      "lang": "es",
      "value": "Las funciones (1) ssh2_load_userkey y (2) ssh2_save_userkey en PuTTY 0.51 hasta 0.63 no limpian correctamente las claves privadas SSH-2 de la memoria, lo que permite a usuarios remotos obtener informaci\u00f3n sensible mediante la lectura de la memoria."
    }
  ],
  "id": "CVE-2015-2157",
  "lastModified": "2026-06-17T00:23:41.533",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2015-03-27T14:59:05.697",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html"
    },
    {
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        "Vendor Advisory"
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    },
    {
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    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.debian.org/security/2015/dsa-3190"
    },
    {
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      "url": "http://www.openwall.com/lists/oss-security/2015/02/28/4"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.openwall.com/lists/oss-security/2015/02/28/5"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/72825"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html"
    },
    {
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      "url": "http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html"
    },
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  "vulnStatus": "Modified",
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}

CVE-2015-2157 (GCVE-0-2015-2157)

Vulnerability from cvelistv5 – Published: 2015-03-27 14:00 – Updated: 2024-08-06 05:10

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

10 references

URL	Tags
http://www.chiark.greenend.org.uk/~sgtatham/putty…	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.securityfocus.com/bid/72825	vdb-entryx_refsource_BID
http://www.debian.org/security/2015/dsa-3190	vendor-advisoryx_refsource_DEBIAN
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.openwall.com/lists/oss-security/2015/02/28/4	mailing-listx_refsource_MLIST
http://www.chiark.greenend.org.uk/~sgtatham/putty…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2015/02/28/5	mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-updates/2015-0…	vendor-advisoryx_refsource_SUSE
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA

Date Public

2015-02-28 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T05:10:14.276Z",
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          },
          {
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          "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html"
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        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html",
              "refsource": "CONFIRM",
              "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html"
            },
            {
              "name": "FEDORA-2015-3160",
              "refsource": "FEDORA",
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html"
            },
            {
              "name": "72825",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/72825"
            },
            {
              "name": "DSA-3190",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2015/dsa-3190"
            },
            {
              "name": "FEDORA-2015-3070",
              "refsource": "FEDORA",
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html"
            },
            {
              "name": "[oss-security] 20150228 CVE Request: PuTTY fails to clear private key information from memory",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2015/02/28/4"
            },
            {
              "name": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html",
              "refsource": "CONFIRM",
              "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html"
            },
            {
              "name": "[oss-security] 20150228 Re: CVE Request: PuTTY fails to clear private key information from memory",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2015/02/28/5"
            },
            {
              "name": "openSUSE-SU-2015:0474",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html"
            },
            {
              "name": "FEDORA-2015-3204",
              "refsource": "FEDORA",
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2015-2157",
    "datePublished": "2015-03-27T14:00:00.000Z",
    "dateReserved": "2015-02-28T00:00:00.000Z",
    "dateUpdated": "2024-08-06T05:10:14.276Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

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.

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.