gsd-2019-17498
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.
Aliases
Aliases
CVE-2019-17498


To clipboard 

{
   GSD: {
      alias: "CVE-2019-17498",
      description: "In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.",
      id: "GSD-2019-17498",
      references: [
         "https://www.suse.com/security/cve/CVE-2019-17498.html",
         "https://access.redhat.com/errata/RHSA-2020:3915",
         "https://advisories.mageia.org/CVE-2019-17498.html",
         "https://security.archlinux.org/CVE-2019-17498",
         "https://linux.oracle.com/cve/CVE-2019-17498.html",
         "https://ubuntu.com/security/CVE-2019-17498",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2019-17498",
         ],
         details: "In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.",
         id: "GSD-2019-17498",
         modified: "2023-12-13T01:23:44.368321Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "cve@mitre.org",
            ID: "CVE-2019-17498",
            STATE: "PUBLIC",
         },
         affects: {
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               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "n/a",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "n/a",
                                    },
                                 ],
                              },
                           },
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                  value: "In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.",
               },
            ],
         },
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                        value: "n/a",
                     },
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         },
         references: {
            reference_data: [
               {
                  name: "https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480",
                  refsource: "MISC",
                  url: "https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480",
               },
               {
                  name: "https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/",
                  refsource: "MISC",
                  url: "https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/",
               },
               {
                  name: "https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498",
                  refsource: "MISC",
                  url: "https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498",
               },
               {
                  name: "FEDORA-2019-91529f19e4",
                  refsource: "FEDORA",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/",
               },
               {
                  name: "openSUSE-SU-2019:2483",
                  refsource: "SUSE",
                  url: "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html",
               },
               {
                  name: "[debian-lts-announce] 20191113 [SECURITY] [DLA 1991-1] libssh2 security update",
                  refsource: "MLIST",
                  url: "https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html",
               },
               {
                  name: "FEDORA-2019-ec04c34768",
                  refsource: "FEDORA",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/",
               },
               {
                  name: "https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c",
                  refsource: "MISC",
                  url: "https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c",
               },
               {
                  name: "[debian-lts-announce] 20211217 [SECURITY] [DLA 2848-1] libssh2 security update",
                  refsource: "MLIST",
                  url: "https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html",
               },
               {
                  name: "https://security.netapp.com/advisory/ntap-20220909-0004/",
                  refsource: "CONFIRM",
                  url: "https://security.netapp.com/advisory/ntap-20220909-0004/",
               },
               {
                  name: "http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html",
               },
               {
                  name: "[debian-lts-announce] 20230908 [SECURITY] [DLA 3559-1] libssh2 security update",
                  refsource: "MLIST",
                  url: "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html",
               },
            ],
         },
      },
      "gitlab.com": {
         advisories: [
            {
               affected_range: "(,1.9.0]",
               affected_versions: "All versions up to 1.9.0",
               cvss_v2: "AV:N/AC:M/Au:N/C:P/I:N/A:P",
               cvss_v3: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
               cwe_ids: [
                  "CWE-1035",
                  "CWE-190",
                  "CWE-937",
               ],
               date: "2020-10-14",
               description: "In libssh2 v1.9.0 versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.",
               fixed_versions: [],
               identifier: "CVE-2019-17498",
               identifiers: [
                  "CVE-2019-17498",
               ],
               not_impacted: "",
               package_slug: "nuget/libssh2-vc141_xp",
               pubdate: "2019-10-21",
               solution: "Unfortunately, there is no solution available yet.",
               title: "Integer Overflow or Wraparound",
               urls: [
                  "https://nvd.nist.gov/vuln/detail/CVE-2019-17498",
               ],
               uuid: "d7c606de-6dae-4b45-967b-6ddecff6eae8",
            },
         ],
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndIncluding: "1.9.0",
                        vulnerable: true,
                     },
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                  operator: "OR",
               },
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                  cpe_match: [
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                     {
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               },
               {
                  children: [],
                  cpe_match: [
                     {
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                        cpe_name: [],
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                     {
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                        cpe_name: [],
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                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
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                        cpe_name: [],
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                     },
                     {
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                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*",
                        cpe_name: [],
                        vulnerable: true,
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               ASSIGNER: "cve@mitre.org",
               ID: "CVE-2019-17498",
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            data_type: "CVE",
            data_version: "4.0",
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                     lang: "en",
                     value: "In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.",
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               ],
            },
            problemtype: {
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                           value: "CWE-190",
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                  },
                  {
                     name: "https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c",
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                     refsource: "CONFIRM",
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                     url: "https://security.netapp.com/advisory/ntap-20220909-0004/",
                  },
                  {
                     name: "http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html",
                     refsource: "MISC",
                     tags: [],
                     url: "http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html",
                  },
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                     tags: [],
                     url: "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html",
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         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "MEDIUM",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 5.8,
                  confidentialityImpact: "PARTIAL",
                  integrityImpact: "NONE",
                  vectorString: "AV:N/AC:M/Au:N/C:P/I:N/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 8.6,
               impactScore: 4.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: true,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 8.1,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "NONE",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "REQUIRED",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 2.8,
               impactScore: 5.2,
            },
         },
         lastModifiedDate: "2023-09-08T14:15Z",
         publishedDate: "2019-10-21T22:15Z",
      },
   },
}


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