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USN-7257-1 (UBUNTU-CVE-2024-3596)

Vulnerability from osv_ubuntu – Published: 2025-02-05 05:08 – Updated: 2026-06-25 10:46 – Source website
VLAI
Summary
krb5 vulnerability
Details

Goldberg, Miro Haller, Nadia Heninger, Mike Milano, Dan Shumow, Marc Stevens, and Adam Suhl discovered that Kerberos incorrectly authenticated certain responses. An attacker able to intercept communications between a RADIUS client and server could possibly use this issue to forge responses, bypass authentication, and access network devices and services.

This update introduces support for the Message-Authenticator attribute in non-EAP authentication methods for communications between Kerberos and a RADIUS server.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
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              "id": "CVE-2024-3596",
              "severity": [
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                },
                {
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                },
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                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
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          {
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            "binary_name": "libgssapi-krb5-2",
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      },
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          {
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        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "krb5",
        "purl": "pkg:deb/ubuntu/krb5@1.19.2-2ubuntu0.5?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.19.2-2ubuntu0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.18.3-6",
        "1.18.3-7",
        "1.19.2-0ubuntu1",
        "1.19.2-1",
        "1.19.2-2",
        "1.19.2-2ubuntu0.1",
        "1.19.2-2ubuntu0.2",
        "1.19.2-2ubuntu0.3",
        "1.19.2-2ubuntu0.4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-3596",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "krb5-admin-server",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-gss-samples",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-k5tls",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-kdc",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-kdc-ldap",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-kpropd",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-locales",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-multidev",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-otp",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-pkinit",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "krb5-user",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libgssapi-krb5-2",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libgssrpc4t64",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libk5crypto3",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libkadm5clnt-mit12",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libkadm5srv-mit12",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libkdb5-10t64",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libkrad0",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libkrb5-3",
            "binary_version": "1.20.1-6ubuntu2.3"
          },
          {
            "binary_name": "libkrb5support0",
            "binary_version": "1.20.1-6ubuntu2.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "krb5",
        "purl": "pkg:deb/ubuntu/krb5@1.20.1-6ubuntu2.3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.20.1-6ubuntu2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.20.1-3ubuntu1",
        "1.20.1-5build1",
        "1.20.1-6ubuntu1",
        "1.20.1-6ubuntu2",
        "1.20.1-6ubuntu2.1",
        "1.20.1-6ubuntu2.2"
      ]
    }
  ],
  "aliases": [],
  "details": "Goldberg, Miro Haller, Nadia Heninger, Mike Milano, Dan Shumow, Marc\nStevens, and Adam Suhl discovered that Kerberos incorrectly authenticated\ncertain responses. An attacker able to intercept communications between a\nRADIUS client and server could possibly use this issue to forge responses,\nbypass authentication, and access network devices and services.\n\nThis update introduces support for the Message-Authenticator attribute in\nnon-EAP authentication methods for communications between Kerberos and a\nRADIUS server.\n",
  "id": "USN-7257-1",
  "modified": "2026-06-25T10:46:38Z",
  "published": "2025-02-05T05:08:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7257-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-3596"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "krb5 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2024-3596"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.