CVE-2023-25136
Vulnerability from cvelistv5
Published
2023-02-03 00:00
Modified
2024-08-02 11:18
Severity ?
Summary
OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."
References
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/02/13/1Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/02/22/1Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/02/22/2Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/02/23/3Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/03/06/1Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/03/09/2Mailing List, Third Party Advisory
cve@mitre.orghttps://bugzilla.mindrot.org/show_bug.cgi?id=3522Exploit, Issue Tracking, Third Party Advisory
cve@mitre.orghttps://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sigPatch, Vendor Advisory
cve@mitre.orghttps://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946Patch, Third Party Advisory
cve@mitre.orghttps://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/Exploit, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/
cve@mitre.orghttps://news.ycombinator.com/item?id=34711565Issue Tracking, Third Party Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/202307-01Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20230309-0003/Third Party Advisory
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2023/02/02/2Exploit, Mailing List, Third Party Advisory
Impacted products
n/an/a
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T11:18:35.552Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2023/02/02/2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.mindrot.org/show_bug.cgi?id=3522"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://news.ycombinator.com/item?id=34711565"
          },
          {
            "name": "[oss-security] 20230213 Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/02/13/1"
          },
          {
            "name": "[oss-security] 20230222 Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/02/22/1"
          },
          {
            "name": "[oss-security] 20230222 Re: Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/02/22/2"
          },
          {
            "name": "[oss-security] 20230223 Re: Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/02/23/3"
          },
          {
            "name": "[oss-security] 20230306 Re: Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/03/06/1"
          },
          {
            "name": "[oss-security] 20230309 Re: Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/03/09/2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20230309-0003/"
          },
          {
            "name": "FEDORA-2023-1176c8b10c",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/"
          },
          {
            "name": "FEDORA-2023-123647648e",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/"
          },
          {
            "name": "GLSA-202307-01",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202307-01"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states \"remote code execution is theoretically possible.\""
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-07-20T00:00:00",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig"
        },
        {
          "url": "https://www.openwall.com/lists/oss-security/2023/02/02/2"
        },
        {
          "url": "https://bugzilla.mindrot.org/show_bug.cgi?id=3522"
        },
        {
          "url": "https://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946"
        },
        {
          "url": "https://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/"
        },
        {
          "url": "https://news.ycombinator.com/item?id=34711565"
        },
        {
          "name": "[oss-security] 20230213 Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/02/13/1"
        },
        {
          "name": "[oss-security] 20230222 Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/02/22/1"
        },
        {
          "name": "[oss-security] 20230222 Re: Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/02/22/2"
        },
        {
          "name": "[oss-security] 20230223 Re: Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/02/23/3"
        },
        {
          "name": "[oss-security] 20230306 Re: Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/03/06/1"
        },
        {
          "name": "[oss-security] 20230309 Re: Re: double-free vulnerability in OpenSSH server 9.1 (CVE-2023-25136)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/03/09/2"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20230309-0003/"
        },
        {
          "name": "FEDORA-2023-1176c8b10c",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/"
        },
        {
          "name": "FEDORA-2023-123647648e",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/"
        },
        {
          "name": "GLSA-202307-01",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202307-01"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-25136",
    "datePublished": "2023-02-03T00:00:00",
    "dateReserved": "2023-02-03T00:00:00",
    "dateUpdated": "2024-08-02T11:18:35.552Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-25136\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2023-02-03T06:15:09.350\",\"lastModified\":\"2024-02-27T15:15:14.617\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states \\\"remote code execution is theoretically possible.\\\"\"},{\"lang\":\"es\",\"value\":\"OpenSSH server (sshd) v9.1 introdujo una vulnerabilidad de doble liberaci\u00f3n durante el manejo de \\\"options.key_algorithms\\\". Esto se ha corregido en OpenSSH v9.2. La doble liberaci\u00f3n puede ser aprovechada por un atacante remoto no autenticado en la configuraci\u00f3n por defecto, para saltar a cualquier ubicaci\u00f3n en el espacio de direcciones de sshd. Un informe de terceros afirma que \\\"la ejecuci\u00f3n remota de c\u00f3digo es te\u00f3ricamente posible\\\".\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.2,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-415\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openbsd:openssh:9.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"779485D0-83A2-404C-9477-82BDE8D63A40\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E30D0E6F-4AE8-4284-8716-991DFA48CC5D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CC559B26-5DFC-4B7A-A27C-B77DE755DFF9\"}]}]},{\"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\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1236B66D-EB11-4324-929F-E2B86683C3C7\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:a250:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"281DFC67-46BB-4FC2-BE03-3C65C9311F65\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"ECF32BB1-9A58-4821-AE49-5D5C8200631F\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:500f:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F21DE67F-CDFD-4D36-9967-633CD0240C6F\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:c250_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F1AB1EC2-2560-494A-A51B-6F20CE318FEB\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:c250:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"58DE2B52-4E49-4CD0-9310-00291B0352C7\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2023/02/13/1\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2023/02/22/1\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2023/02/22/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2023/02/23/3\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2023/03/06/1\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2023/03/09/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.mindrot.org/show_bug.cgi?id=3522\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://news.ycombinator.com/item?id=34711565\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202307-01\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20230309-0003/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.openwall.com/lists/oss-security/2023/02/02/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Mailing List\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.