{
  "cveId": "CVE-2023-39975",
  "url": "https://patchblox.com/security/cve/CVE-2023-39975",
  "summary": "CVE-2023-39975 is fixed in 16 products on 1 platform, first by ALAS2023-2023-321, released August 31, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "krb5-devel: Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecu...",
  "description": "Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC).\n\nSecurity Fix(es):\n\n* krb5: Denial of service through freeing uninitialized pointer (CVE-2023-36054)\n\n* krb5: double-free in KDC TGS processing (CVE-2023-39975)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 9.3 Release Notes linked from the References section.",
  "published": "2023-08-31T21:43:00Z",
  "severity": "Moderate",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.01468,
  "epssPercentile": 0.73902,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "krb5",
      "release": "rocky 9",
      "fixedVersion": "0:1.21.1-10.el9_8",
      "fix": "RLSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2023-6699",
      "released": "2026-05-28T15:43:06Z"
    },
    {
      "platform": "linux",
      "product": "krb5-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:1.21.1-1.el9",
      "fix": "RHSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-devel",
      "release": "almalinux 9",
      "fixedVersion": "1.21.1-1.el9",
      "fix": "ALSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-devel",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-devel",
      "release": "ol 9",
      "fixedVersion": "0:1.21.1-1.0.1.el9",
      "fix": "ELSA-2023-6699",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-6699",
      "released": "2023-11-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-libs",
      "release": "RHEL 9",
      "fixedVersion": "0:1.21.1-1.el9",
      "fix": "RHSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-libs",
      "release": "almalinux 9",
      "fixedVersion": "1.21.1-1.el9",
      "fix": "ALSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-libs",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-libs",
      "release": "ol 9",
      "fixedVersion": "0:1.21.1-1.0.1.el9",
      "fix": "ELSA-2023-6699",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-6699",
      "released": "2023-11-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-libs-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-pkinit",
      "release": "RHEL 9",
      "fixedVersion": "0:1.21.1-1.el9",
      "fix": "RHSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-pkinit",
      "release": "almalinux 9",
      "fixedVersion": "1.21.1-1.el9",
      "fix": "ALSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-pkinit",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-pkinit",
      "release": "ol 9",
      "fixedVersion": "0:1.21.1-1.0.1.el9",
      "fix": "ELSA-2023-6699",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-6699",
      "released": "2023-11-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-pkinit-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-server",
      "release": "RHEL 9",
      "fixedVersion": "0:1.21.1-1.el9",
      "fix": "RHSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-server",
      "release": "almalinux 9",
      "fixedVersion": "1.21.1-1.el9",
      "fix": "ALSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-server",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-server",
      "release": "ol 9",
      "fixedVersion": "0:1.21.1-1.0.1.el9",
      "fix": "ELSA-2023-6699",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-6699",
      "released": "2023-11-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-server-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-server-ldap",
      "release": "RHEL 9",
      "fixedVersion": "0:1.21.1-1.el9",
      "fix": "RHSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
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      "product": "krb5-server-ldap",
      "release": "almalinux 9",
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      "fix": "ALSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
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      "product": "krb5-server-ldap",
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      "fixedVersion": "1.21-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-server-ldap",
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      "fix": "ELSA-2023-6699",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-6699",
      "released": "2023-11-11T00:00:00Z"
    },
    {
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      "released": "2023-08-31T21:43:00Z"
    },
    {
      "platform": "linux",
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      "fixedVersion": "0:1.21.1-1.el9",
      "fix": "RHSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
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      "fix": "ALSA-2023:6699",
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      "released": "2023-11-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "krb5-workstation",
      "release": "amzn 2023",
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      "fix": "ALAS2023-2023-321",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
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      "released": "2023-11-11T00:00:00Z"
    },
    {
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      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    },
    {
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      "fix": "RHSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
    },
    {
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      "fix": "ALSA-2023:6699",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-6699",
      "released": "2023-11-07T00:00:00Z"
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    {
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      "release": "amzn 2023",
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      "fix": "ALAS2023-2023-321",
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      "released": "2023-08-31T21:43:00Z"
    },
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      "released": "2023-11-11T00:00:00Z"
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      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-321",
      "released": "2023-08-31T21:43:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}