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      "text": "Moderate"
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      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
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      {
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        "text": "CVE-2025-24528: prevent overflow when calculating ulog block size\n- CVE-2025-3576: don't issue session keys with deprecated enctypes (RC4-HMAC-MD5 spoofing)\n- CVE-2026-40355: fix NULL pointer dereference in NegoEx parse_nego_message\n- CVE-2026-40356: fix integer underflow in NegoEx parse_message header_len\n- CVE-2023-36054: ensure array count consistency in kadm5 RPC to prevent freeing uninitialized pointers in _xdr_kadm5_principal_ent_rec",
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          "date": "2026-05-27T09:55:03Z",
          "number": "1",
          "summary": "Initial version"
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    "title": "krb5: Fix of 5 CVEs"
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            "privilegesRequired": "LOW",
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          "title": "Vulnerability description"
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-40356"
        }
      ],
      "release_date": "2026-04-28T00:00:00Z",
      "remediations": [
        {
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          "date": "2026-05-27T09:54:02.084083Z",
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          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779875639"
        },
        {
          "category": "none_available",
          "date": "2026-04-28T00:00:00Z",
          "details": "Affected",
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        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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    {
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        "id": "CWE-787",
        "name": "Out-of-bounds Write"
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          "category": "description",
          "text": "In MIT Kerberos 5 (aka krb5) before 1.22 (with incremental propagation), there is an integer overflow for a large update size to resize() in kdb_log.c. An authenticated attacker can cause an out-of-bounds write and kadmind daemon crash.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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        },
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          "category": "none_available",
          "date": "2024-01-28T00:00:00Z",
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          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779875639",
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            "CentOS-Stream-8:krb5-pkinit-0:1.18.2-27.el8.tuxcare.els2.x86_64",
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            "CentOS-Stream-8:krb5-server-ldap-0:1.18.2-27.el8.tuxcare.els2.x86_64",
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            "CentOS-Stream-8:libkadm5-0:1.18.2-27.el8.tuxcare.els2.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779875639"
        },
        {
          "category": "none_available",
          "date": "2025-04-15T00:00:00Z",
          "details": "Affected",
          "product_ids": [
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          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
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            "CentOS-Stream-8:krb5-server-ldap-0:1.18.2-27.el8.tuxcare.els2.x86_64",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    },
    {
      "cve": "CVE-2026-40355",
      "cwe": {
        "id": "CWE-476",
        "name": "NULL Pointer Dereference"
      },
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in MIT Kerberos 5 (krb5). An unauthenticated remote attacker can exploit a NULL pointer dereference vulnerability by calling `gss_accept_sec_context()` on a system with a NegoEx mechanism registered. This can lead to the termination of the process, resulting in a Denial of Service (DoS).",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-40355"
        }
      ],
      "release_date": "2026-04-28T00:00:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-27T09:54:02.084083Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779875639",
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            "CentOS-Stream-8:libkadm5-0:1.18.2-27.el8.tuxcare.els2.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779875639"
        },
        {
          "category": "none_available",
          "date": "2026-04-28T00:00:00Z",
          "details": "Affected",
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        {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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    }
  ]
}