cve-2023-1667
Vulnerability from cvelistv5
Published
2023-05-26 00:00
Modified
2024-08-02 05:57
Severity ?
Summary
A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.
Impacted products
Vendor Product Version
n/a libssh Version: libssh-2
Show details on NVD website


{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-02T05:57:24.326Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://access.redhat.com/security/cve/CVE-2023-1667",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://bugzilla.redhat.com/show_bug.cgi?id=2182199",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "http://www.libssh.org/security/advisories/CVE-2023-1667.txt",
               },
               {
                  name: "FEDORA-2023-5fa5ca2043",
                  tags: [
                     "vendor-advisory",
                     "x_transferred",
                  ],
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/",
               },
               {
                  name: "[debian-lts-announce] 20230529 [SECURITY] [DLA 3437-1] libssh security update",
                  tags: [
                     "mailing-list",
                     "x_transferred",
                  ],
                  url: "https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html",
               },
               {
                  name: "GLSA-202312-05",
                  tags: [
                     "vendor-advisory",
                     "x_transferred",
                  ],
                  url: "https://security.gentoo.org/glsa/202312-05",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "libssh",
               vendor: "n/a",
               versions: [
                  {
                     status: "affected",
                     version: "libssh-2",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.",
            },
         ],
         problemTypes: [
            {
               descriptions: [
                  {
                     cweId: "CWE-476",
                     description: "CWE-476",
                     lang: "en",
                     type: "CWE",
                  },
               ],
            },
         ],
         providerMetadata: {
            dateUpdated: "2023-12-22T10:06:17.929046",
            orgId: "53f830b8-0a3f-465b-8143-3b8a9948e749",
            shortName: "redhat",
         },
         references: [
            {
               url: "https://access.redhat.com/security/cve/CVE-2023-1667",
            },
            {
               url: "https://bugzilla.redhat.com/show_bug.cgi?id=2182199",
            },
            {
               url: "http://www.libssh.org/security/advisories/CVE-2023-1667.txt",
            },
            {
               name: "FEDORA-2023-5fa5ca2043",
               tags: [
                  "vendor-advisory",
               ],
               url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/",
            },
            {
               name: "[debian-lts-announce] 20230529 [SECURITY] [DLA 3437-1] libssh security update",
               tags: [
                  "mailing-list",
               ],
               url: "https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html",
            },
            {
               name: "GLSA-202312-05",
               tags: [
                  "vendor-advisory",
               ],
               url: "https://security.gentoo.org/glsa/202312-05",
            },
         ],
      },
   },
   cveMetadata: {
      assignerOrgId: "53f830b8-0a3f-465b-8143-3b8a9948e749",
      assignerShortName: "redhat",
      cveId: "CVE-2023-1667",
      datePublished: "2023-05-26T00:00:00",
      dateReserved: "2023-03-27T00:00:00",
      dateUpdated: "2024-08-02T05:57:24.326Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2023-1667\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2023-05-26T18:15:10.740\",\"lastModified\":\"2024-11-21T07:39:39.170\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.9.1\",\"versionEndIncluding\":\"0.9.6\",\"matchCriteriaId\":\"4ABFA49F-EB6C-45E4-8347-1E0A0FD65908\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.10.0\",\"versionEndIncluding\":\"0.10.4\",\"matchCriteriaId\":\"B02C8B4E-0AD2-44B9-B32A-21986D00F9F5\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E30D0E6F-4AE8-4284-8716-991DFA48CC5D\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F4CFF558-3C47-480D-A2F0-BABF26042943\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F6FB57C-2BC7-487C-96DD-132683AEB35D\"}]}]}],\"references\":[{\"url\":\"http://www.libssh.org/security/advisories/CVE-2023-1667.txt\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://access.redhat.com/security/cve/CVE-2023-1667\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2182199\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://security.gentoo.org/glsa/202312-05\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.libssh.org/security/advisories/CVE-2023-1667.txt\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://access.redhat.com/security/cve/CVE-2023-1667\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2182199\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/202312-05\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.