{
  "id": "CVE-2023-25136",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-02-03T06:15:09.350",
  "lastModified": "2023-04-19T04:15:31.223",
  "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.\""
    }
  ],
  "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:openssh:openssh:9.1:*:*:*:*:*:*:*",
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      "url": "http://www.openwall.com/lists/oss-security/2023/02/13/1",
      "source": "cve@mitre.org",
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    {
      "url": "http://www.openwall.com/lists/oss-security/2023/03/09/2",
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    {
      "url": "https://bugzilla.mindrot.org/show_bug.cgi?id=3522",
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      "tags": [
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    {
      "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig",
      "source": "cve@mitre.org",
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        "Vendor Advisory"
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    {
      "url": "https://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946",
      "source": "cve@mitre.org",
      "tags": [
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    },
    {
      "url": "https://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/",
      "source": "cve@mitre.org",
      "tags": [
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    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/",
      "source": "cve@mitre.org"
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    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://news.ycombinator.com/item?id=34711565",
      "source": "cve@mitre.org",
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    {
      "url": "https://security.netapp.com/advisory/ntap-20230309-0003/",
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}