csaf_certbund - wid-sec-w-2024-0950

wid-sec-w-2024-0950

Vulnerability from csaf_certbund

Published

2024-04-23 22:00

Modified

2024-05-07 22:00

Summary

Red Hat Enterprise Linux (Libreswan): Schwachstelle ermöglicht Denial of Service

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution.

Angriff

Ein lokaler Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux in Libreswan ausnutzen, um einen Denial of Service Angriff durchzuführen.

Betroffene Betriebssysteme

- Linux

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Red Hat Enterprise Linux (RHEL) ist eine popul\u00e4re Linux-Distribution.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux in Libreswan ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2024-0950 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0950.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-0950 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0950"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory vom 2024-04-23",
        "url": "https://access.redhat.com/errata/RHSA-2024:1998"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugzilla CVE-2024-2357",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2268952"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:2033 vom 2024-04-24",
        "url": "https://access.redhat.com/errata/RHSA-2024:2033"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-1998 vom 2024-04-24",
        "url": "http://linux.oracle.com/errata/ELSA-2024-1998.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-2033 vom 2024-04-25",
        "url": "http://linux.oracle.com/errata/ELSA-2024-2033.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:2081 vom 2024-04-29",
        "url": "https://access.redhat.com/errata/RHSA-2024:2081"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:2082 vom 2024-04-29",
        "url": "https://access.redhat.com/errata/RHSA-2024:2082"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:2085 vom 2024-04-29",
        "url": "https://access.redhat.com/errata/RHSA-2024:2085"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:2565 vom 2024-04-30",
        "url": "https://access.redhat.com/errata/RHSA-2024:2565"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2024:1998 vom 2024-05-06",
        "url": "https://errata.build.resf.org/RLSA-2024:1998"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-2565 vom 2024-05-07",
        "url": "https://linux.oracle.com/errata/ELSA-2024-2565.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Red Hat Enterprise Linux (Libreswan): Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-05-07T22:00:00.000+00:00",
      "generator": {
        "date": "2024-05-08T08:07:58.740+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2024-0950",
      "initial_release_date": "2024-04-23T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-04-23T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2024-04-24T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-04-28T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-05-01T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-05-06T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2024-05-07T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "RESF Rocky Linux",
            "product": {
              "name": "RESF Rocky Linux",
              "product_id": "T032255",
              "product_identification_helper": {
                "cpe": "cpe:/o:resf:rocky_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "RESF"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux",
                "product": {
                  "name": "Red Hat Enterprise Linux",
                  "product_id": "67646",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:-"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "libreswan \u003c4.13",
                "product": {
                  "name": "Red Hat Enterprise Linux libreswan \u003c4.13",
                  "product_id": "T034378",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:libreswan__4.13"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "libreswan \u003c5.0",
                "product": {
                  "name": "Red Hat Enterprise Linux libreswan \u003c5.0",
                  "product_id": "T034379",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:libreswan__5.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Enterprise Linux"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-2357",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Red Hat Enterprise Linux. Dieser Fehler besteht in der Komponente Libreswan aufgrund einer unsachgem\u00e4\u00dfen Verbindungskonfiguration. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen. Eine erfolgreiche Ausnutzung erfordert eine Benutzerinteraktion."
        }
      ],
      "product_status": {
        "known_affected": [
          "67646",
          "T004914",
          "T032255"
        ]
      },
      "release_date": "2024-04-23T22:00:00Z",
      "title": "CVE-2024-2357"
    }
  ]
}

cve-2024-2357

Vulnerability from cvelistv5

Published

2024-03-11 19:39

Modified

2024-11-20 17:25

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service.

References

▼	URL	Tags
	https://libreswan.org/security/CVE-2024-2357	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/
	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/
	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/

Impacted products

Vendor

Product

Version

▼

The Libreswan Project (www.libreswan.org)

libreswan

Version: 4.2 ≤ 4.12

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-2357",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-12T16:21:48.798359Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-20T17:25:31.624Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-01T19:11:53.507Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "CVE-2024-2357",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://libreswan.org/security/CVE-2024-2357"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "libreswan",
          "vendor": "The Libreswan Project (www.libreswan.org)",
          "versions": [
            {
              "lessThanOrEqual": "4.1",
              "status": "unaffected",
              "version": "3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.12",
              "status": "affected",
              "version": "4.2",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.0"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "The vulnerability can only be triggered for connections with ikev2=yes and authby=secret"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Andrew Vaughn"
        }
      ],
      "datePublic": "2024-03-11T14:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "IKEv2 misconfiguration can cause libreswan to abort and restart",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-03-11T19:39:03.280Z",
        "orgId": "d42dc95b-23f1-4e06-9076-20753a0fb0df",
        "shortName": "libreswan"
      },
      "references": [
        {
          "name": "CVE-2024-2357",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://libreswan.org/security/CVE-2024-2357"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "This issue is fixed in 4.13, 5.0 and all later versions."
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2024-02-08T00:00:00.000Z",
          "value": "Issue reported publicly via https://github.com/libreswan/libreswan/issues/1609"
        },
        {
          "lang": "en",
          "time": "2024-02-14T00:00:00.000Z",
          "value": "Workaround posted in the github issue"
        },
        {
          "lang": "en",
          "time": "2024-02-15T00:00:00.000Z",
          "value": "Fix published (as issue was already public via githb issue)"
        },
        {
          "lang": "en",
          "time": "2024-03-09T00:00:00.000Z",
          "value": "Advanced notice given to support customers and distributions"
        },
        {
          "lang": "en",
          "time": "2024-03-11T00:00:00.000Z",
          "value": "CVE-2024-2357 published"
        }
      ],
      "title": "IKEv2 misconfiguration can cause libreswan to abort and restart",
      "workarounds": [
        {
          "lang": "en",
          "value": "As a workaround, one can place an unguessable long random default secret in /etc/ipsec.secrets, for example using the following command:\n\n echo -e \"# CVE-2024-2357 workaround\n: PSK \"$(openssl rand -hex 32)\"\" \u003e\u003e /etc/ipsec.secrets\n\nThis will ensure a PSK secret is always found, but it will always be wrong, and thus authentication will still properly fail."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d42dc95b-23f1-4e06-9076-20753a0fb0df",
    "assignerShortName": "libreswan",
    "cveId": "CVE-2024-2357",
    "datePublished": "2024-03-11T19:39:03.280Z",
    "dateReserved": "2024-03-09T22:24:12.530Z",
    "dateUpdated": "2024-11-20T17:25:31.624Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted