CVE-2019-3861 (GCVE-0-2019-3861)

Vulnerability from cvelistv5 – Published: 2019-03-25 18:30 – Updated: 2024-08-04 19:19
VLAI
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Severity
5 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CWE
Assigner
References
Impacted products
Show details on NVD website
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cliente.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L\",\"baseScore\":5.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.6,\"impactScore\":3.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:P\",\"baseScore\":6.4,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":4.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.15\",\"versionEndIncluding\":\"1.8.0\",\"matchCriteriaId\":\"FD6BFD30-9730-4488-9357-CDF655C6BCF1\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7CF3019-975D-40BB-A8A4-894E62BD3797\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F1E78106-58E6-4D59-990F-75DA575BFAD9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5F65DAB0-3DAD-49FF-BC73-3581CC3D5BF3\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing 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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://seclists.org/bugtraq/2019/Apr/25\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20190327-0005/\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2019/dsa-4431\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://www.libssh2.org/CVE-2019-3861.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party 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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://seclists.org/bugtraq/2019/Apr/25\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20190327-0005/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2019/dsa-4431\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.libssh2.org/CVE-2019-3861.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:39:03+00:00",
      "cve": "CVE-2019-3861",
      "id": "CVE-2019-3861",
      "initial_release_date": "2019-03-13T00:00:00+00:00",
      "product_status:fixed": "63",
      "product_status:known_affected": "12",
      "product_status:known_not_affected": "4",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "libssh2: Out-of-bounds reads with specially crafted SSH packets",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-3861.json",
      "version": "3"
    }
  }
}