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
d42dc95b-23f1-4e06-9076-20753a0fb0dfhttps://libreswan.org/security/CVE-2024-2357
d42dc95b-23f1-4e06-9076-20753a0fb0dfhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/
d42dc95b-23f1-4e06-9076-20753a0fb0dfhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/
d42dc95b-23f1-4e06-9076-20753a0fb0dfhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/
af854a3a-2127-422b-91ae-364da2661108https://libreswan.org/security/CVE-2024-2357
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/
Impacted products
Vendor Product Version
Show details on NVD website

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{
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            "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",
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              "content": {
                "id": "CVE-2024-2357",
                "options": [
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                    "Exploitation": "none"
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                  {
                    "Automatable": "no"
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-03-12T16:21:48.798359Z",
                "version": "2.0.3"
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                "description": "CWE-noinfo Not enough information",
                "lang": "en",
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          "dateUpdated": "2024-11-20T17:25:31.624Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "libreswan",
          "vendor": "The Libreswan Project (www.libreswan.org)",
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              "status": "unaffected",
              "version": "3.0",
              "versionType": "semver"
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      "configurations": [
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          "value": "The vulnerability can only be triggered for connections with ikev2=yes and authby=secret"
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      "credits": [
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          "type": "finder",
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      "datePublic": "2024-03-11T14:00:00.000Z",
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          "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."
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              "description": "IKEv2 misconfiguration can cause libreswan to abort and restart",
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      "solutions": [
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          "lang": "en",
          "value": "This issue is fixed in 4.13, 5.0 and all later versions."
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      "timeline": [
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          "lang": "en",
          "time": "2024-02-08T00:00:00.000Z",
          "value": "Issue reported publicly via https://github.com/libreswan/libreswan/issues/1609"
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          "value": "Workaround posted in the github issue"
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          "value": "Fix published (as issue was already public via githb issue)"
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          "time": "2024-03-09T00:00:00.000Z",
          "value": "Advanced notice given to support customers and distributions"
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          "time": "2024-03-11T00:00:00.000Z",
          "value": "CVE-2024-2357 published"
        }
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      "title": "IKEv2 misconfiguration can cause libreswan to abort and restart",
      "workarounds": [
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          "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."
        }
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  "cveMetadata": {
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    "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"
  },
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  "dataVersion": "5.1",
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  }
}


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