gsd-2019-3857
Vulnerability from gsd
Modified
2023-12-13 01:24
Details
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
Aliases
Aliases
CVE-2019-3857


To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-3857",
    "description": "An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.",
    "id": "GSD-2019-3857",
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      "https://www.debian.org/security/2019/dsa-4431",
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      "https://access.redhat.com/errata/RHSA-2019:1943",
      "https://access.redhat.com/errata/RHSA-2019:1791",
      "https://access.redhat.com/errata/RHSA-2019:1652",
      "https://access.redhat.com/errata/RHSA-2019:1175",
      "https://access.redhat.com/errata/RHSA-2019:0679",
      "https://advisories.mageia.org/CVE-2019-3857.html",
      "https://security.archlinux.org/CVE-2019-3857",
      "https://alas.aws.amazon.com/cve/html/CVE-2019-3857.html",
      "https://linux.oracle.com/cve/CVE-2019-3857.html",
      "https://ubuntu.com/security/CVE-2019-3857"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-3857"
      ],
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      "id": "GSD-2019-3857",
      "modified": "2023-12-13T01:24:04.886370Z",
      "schema_version": "1.4.0"
    }
  },
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          }
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          }
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    },
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          "affected_range": "[1.2.8,1.8.0]",
          "affected_versions": "All versions starting from 1.2.8 up to 1.8.0",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "cwe_ids": [
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            "CWE-787",
            "CWE-937"
          ],
          "date": "2020-10-15",
          "description": "An integer overflow flaw which could lead to an out-of-bounds write was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.",
          "fixed_versions": [
            "1.8.2"
          ],
          "identifier": "CVE-2019-3857",
          "identifiers": [
            "CVE-2019-3857"
          ],
          "not_impacted": "All versions before 1.2.8, all versions after 1.8.0",
          "package_slug": "nuget/libssh2-vc141_xp",
          "pubdate": "2019-03-25",
          "solution": "Upgrade to version 1.8.2 or above.",
          "title": "Out-of-bounds Write",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2019-3857"
          ],
          "uuid": "a47fff3e-f335-4b04-9a54-ef821d4fcc4e"
        }
      ]
    },
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2020-10-15T13:43Z",
      "publishedDate": "2019-03-25T19:29Z"
    }
  }
}


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