Vulnerability-Lookup

CNVD-2015-01825

Vulnerability from cnvd - Published: 2015-03-19

Title

libssh2 kex_agree_methods函数拒绝服务漏洞

Description

libssh2是一个C函数库，用来实现SSH2协议。 libssh2 kex_agree_methods函数存在安全漏洞，允许攻击者通过SSH_MSG_KEXINIT报文中的特制长度值，使应用程序崩溃。

Severity

中

Patch Name

libssh2 kex_agree_methods函数拒绝服务漏洞的补丁

Patch Description

libssh2是一个C函数库，用来实现SSH2协议。libssh2 kex_agree_methods函数存在安全漏洞，允许攻击者通过SSH_MSG_KEXINIT报文中的特制长度值，使应用程序崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： http://www.libssh2.org/adv_20150311.html

Reference

http://www.libssh2.org/adv_20150311.html https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1782

Impacted products

Name
libssh2 libssh2 <=1.4.3

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "73061"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-1782"
    }
  },
  "description": "libssh2\u662f\u4e00\u4e2aC\u51fd\u6570\u5e93\uff0c\u7528\u6765\u5b9e\u73b0SSH2\u534f\u8bae\u3002\r\n\r\nlibssh2 kex_agree_methods\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u901a\u8fc7SSH_MSG_KEXINIT\u62a5\u6587\u4e2d\u7684\u7279\u5236\u957f\u5ea6\u503c\uff0c\u4f7f\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u3002",
  "discovererName": "Mariusz Ziulek. Patch written by Mariusz Ziulek and Daniel Stenberg",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttp://www.libssh2.org/adv_20150311.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-01825",
  "openTime": "2015-03-19",
  "patchDescription": "libssh2\u662f\u4e00\u4e2aC\u51fd\u6570\u5e93\uff0c\u7528\u6765\u5b9e\u73b0SSH2\u534f\u8bae\u3002libssh2 kex_agree_methods\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u901a\u8fc7SSH_MSG_KEXINIT\u62a5\u6587\u4e2d\u7684\u7279\u5236\u957f\u5ea6\u503c\uff0c\u4f7f\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "libssh2 kex_agree_methods\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "libssh2 libssh2 \u003c=1.4.3"
  },
  "referenceLink": "http://www.libssh2.org/adv_20150311.html\r\nhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1782",
  "serverity": "\u4e2d",
  "submitTime": "2015-03-17",
  "title": "libssh2 kex_agree_methods\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-1782 (GCVE-0-2015-1782)

Vulnerability from cvelistv5 – Published: 2015-03-13 14:00 – Updated: 2024-08-06 04:54

Summary

The kex_agree_methods function in libssh2 before 1.5.0 allows remote servers to cause a denial of service (crash) or have other unspecified impact via crafted length values in an SSH_MSG_KEXINIT packet.

Severity

No CVSS data available.

CWE

Assigner

redhat redhat root

References

8 references

URL	Tags
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.mandriva.com/security/advisories?name=…	vendor-advisoryx_refsource_MANDRIVA
http://www.securityfocus.com/bid/73061	vdb-entryx_refsource_BID
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://www.debian.org/security/2015/dsa-3182	vendor-advisoryx_refsource_DEBIAN
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.libssh2.org/adv_20150311.html	x_refsource_CONFIRM

Date Public

2015-03-11 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T04:54:16.099Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151943.html"
          },
          {
            "name": "MDVSA-2015:148",
            "tags": [
              "vendor-advisory",
              "x_refsource_MANDRIVA",
              "x_transferred"
            ],
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:148"
          },
          {
            "name": "73061",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/73061"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
          },
          {
            "name": "DSA-3182",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2015/dsa-3182"
          },
          {
            "name": "FEDORA-2015-3791",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153933.html"
          },
          {
            "name": "FEDORA-2015-3797",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152362.html"
          },
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "http://www.libssh2.org/adv_20150311.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
            }
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      ],
      "datePublic": "2015-03-11T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The kex_agree_methods function in libssh2 before 1.5.0 allows remote servers to cause a denial of service (crash) or have other unspecified impact via crafted length values in an SSH_MSG_KEXINIT packet."
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2016-12-30T15:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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        },
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          "name": "MDVSA-2015:148",
          "tags": [
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            "x_refsource_MANDRIVA"
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          "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:148"
        },
        {
          "name": "73061",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/73061"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
        },
        {
          "name": "DSA-3182",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2015/dsa-3182"
        },
        {
          "name": "FEDORA-2015-3791",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153933.html"
        },
        {
          "name": "FEDORA-2015-3797",
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            "vendor-advisory",
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          "url": "http://www.libssh2.org/adv_20150311.html"
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    "datePublished": "2015-03-13T14:00:00.000Z",
    "dateReserved": "2015-02-17T00:00:00.000Z",
    "dateUpdated": "2024-08-06T04:54:16.099Z",
    "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.

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