Vulnerability-Lookup

OESA-2024-1409 (CVE-2024-2357)

Vulnerability from osv_openeuler – Published: 2024-04-12 11:06 – Updated: 2026-08-06 11:06 – Source website

Summary

libreswan security update

Details

Libreswan is an implementation of IKEv1 and IKEv2 for IPsec. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks. Everything passing through the untrusted net is encrypted by the ipsec gateway machine and decrypted by the gateway at the other end of the tunnel. The resulting tunnel is a virtual private network or VPN.

Security Fix(es):

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.(CVE-2024-2357)

Severity

3.5 (Low)


                    
                      CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2024-2357	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "libreswan-4.14-1.oe2203sp1.aarch64.rpm",
          "libreswan-help-4.14-1.oe2203sp1.aarch64.rpm",
          "libreswan-debugsource-4.14-1.oe2203sp1.aarch64.rpm",
          "libreswan-debuginfo-4.14-1.oe2203sp1.aarch64.rpm"
        ],
        "src": [
          "libreswan-4.14-1.oe2203sp1.src.rpm"
        ],
        "x86_64": [
          "libreswan-debuginfo-4.14-1.oe2203sp1.x86_64.rpm",
          "libreswan-4.14-1.oe2203sp1.x86_64.rpm",
          "libreswan-debugsource-4.14-1.oe2203sp1.x86_64.rpm",
          "libreswan-help-4.14-1.oe2203sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP1",
        "name": "libreswan",
        "purl": "pkg:rpm/openEuler/libreswan\u0026distro=openEuler-22.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.14-1.oe2203sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Low"
  },
  "details": "Libreswan is an implementation of IKEv1 and IKEv2 for IPsec. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services.  These services allow you to build secure tunnels through untrusted networks.  Everything passing through the untrusted net is encrypted by the ipsec gateway machine and decrypted by the gateway at the other end of the tunnel.  The resulting tunnel is a virtual private network or VPN.\r\n\r\nSecurity Fix(es):\r\n\r\nThe 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.(CVE-2024-2357)",
  "id": "OESA-2024-1409",
  "modified": "2026-08-06T11:06:51Z",
  "published": "2024-04-12T11:06:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1409"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-2357"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libreswan security update",
  "upstream": [
    "CVE-2024-2357"
  ]
}

CVE-2024-2357 (GCVE-0-2024-2357)

Vulnerability from cvelistv5 – Published: 2024-03-11 19:39 – Updated: 2025-02-13 17:39

Title

IKEv2 misconfiguration can cause libreswan to abort and restart

Summary

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-12 16:21 UTC

CWE

IKEv2 misconfiguration can cause libreswan to abort and restart
CWE-noinfo Not enough information

Assigner

libreswan mitre root

References

4 references

URL	Tags
https://libreswan.org/security/CVE-2024-2357	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

1 product

Vendor	Product	Version
The Libreswan Project (www.libreswan.org)	libreswan	Unaffected: 3.0 , ≤ 4.1 (semver) Affected: 4.2 , ≤ 4.12 (semver) Unaffected: 5.0

Date Public

2024-03-11 14:00

Credits

Andrew Vaughn

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": "2024-03-23T02:06:57.682Z",
        "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": "2025-02-13T17:39:47.355Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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