CVE-2024-21606 (GCVE-0-2024-21606)

Vulnerability from cvelistv5 – Published: 2024-01-12 00:54 – Updated: 2025-06-17 21:09
VLAI?
Summary
A Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). In a remote access VPN scenario, if a "tcp-encap-profile" is configured and a sequence of specific packets is received, a flowd crash and restart will be observed. This issue affects Juniper Networks Junos OS on SRX Series: * All versions earlier than 20.4R3-S8; * 21.2 versions earlier than 21.2R3-S6; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R3-S3; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S1; * 22.4 versions earlier than 22.4R2-S2, 22.4R3.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-415 - Double Free
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 0 , < 20.4R3-S8 (semver)
Affected: 21.2 , < 21.2R3-S6 (semver)
Affected: 21.3 , < 21.3R3-S5 (semver)
Affected: 21.4 , < 21.4R3-S5 (semver)
Affected: 22.1 , < 22.1R3-S3 (semver)
Affected: 22.2 , < 22.2R3-S3 (semver)
Affected: 22.3 , < 22.3R3-S1 (semver)
Affected: 22.4 , < 22.4R2-S2, 22.4R3 (semver)
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"\\nA Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).\\n\\nIn a remote access VPN scenario, if a \\\"tcp-encap-profile\\\" is configured and a sequence of specific packets is received, a flowd crash and restart will be observed.\\n\\nThis issue affects Juniper Networks Junos OS on SRX Series:\\n\\n\\n\\n  *  All versions earlier than 20.4R3-S8;\\n  *  21.2 versions earlier than 21.2R3-S6;\\n  *  21.3 versions earlier than 21.3R3-S5;\\n  *  21.4 versions earlier than 21.4R3-S5;\\n  *  22.1 versions earlier than 22.1R3-S3;\\n  *  22.2 versions earlier than 22.2R3-S3;\\n  *  22.3 versions earlier than 22.3R3-S1;\\n  *  22.4 versions earlier than 22.4R2-S2, 22.4R3.\\n\\n\\n\\n\\n\\n\\n\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad Double Free en el flow processing daemon (flowd) de Juniper Networks Junos OS en la serie SRX permite que un atacante no autenticado basado en red provoque una denegaci\\u00f3n de servicio (DoS). En un escenario de VPN de acceso remoto, si se configura un \\\"tcp-encap-profile\\\" y se recibe una secuencia de paquetes espec\\u00edficos, se observar\\u00e1 una falla fluida y un reinicio. Este problema afecta a Juniper Networks Junos OS en la serie SRX: * Todas las versiones anteriores a 20.4R3-S8; * Versiones 21.2 anteriores a 21.2R3-S6; * Versiones 21.3 anteriores a 21.3R3-S5; * Versiones 21.4 anteriores a 21.4R3-S5; * Versiones 22.1 anteriores a 22.1R3-S3; * Versiones 22.2 anteriores a 22.2R3-S3; * Versiones 22.3 anteriores a 22.3R3-S1; * Versiones 22.4 anteriores a 22.4R2-S2, 22.4R3.\"}]",
      "id": "CVE-2024-21606",
      "lastModified": "2024-11-21T08:54:42.453",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"sirt@juniper.net\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
      "published": "2024-01-12T01:15:48.873",
      "references": "[{\"url\": \"https://supportportal.juniper.net/JSA75747\", \"source\": \"sirt@juniper.net\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H\", \"source\": \"sirt@juniper.net\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://supportportal.juniper.net/JSA75747\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "sirt@juniper.net",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"sirt@juniper.net\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-415\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-415\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-21606\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2024-01-12T01:15:48.873\",\"lastModified\":\"2024-11-21T08:54:42.453\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"\\nA Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).\\n\\nIn a remote access VPN scenario, if a \\\"tcp-encap-profile\\\" is configured and a sequence of specific packets is received, a flowd crash and restart will be observed.\\n\\nThis issue affects Juniper Networks Junos OS on SRX Series:\\n\\n\\n\\n  *  All versions earlier than 20.4R3-S8;\\n  *  21.2 versions earlier than 21.2R3-S6;\\n  *  21.3 versions earlier than 21.3R3-S5;\\n  *  21.4 versions earlier than 21.4R3-S5;\\n  *  22.1 versions earlier than 22.1R3-S3;\\n  *  22.2 versions earlier than 22.2R3-S3;\\n  *  22.3 versions earlier than 22.3R3-S1;\\n  *  22.4 versions earlier than 22.4R2-S2, 22.4R3.\\n\\n\\n\\n\\n\\n\\n\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad Double Free en el flow processing daemon (flowd) de Juniper Networks Junos OS en la serie SRX permite que un atacante no autenticado basado en red provoque una denegaci\u00f3n de servicio (DoS). En un escenario de VPN de acceso remoto, si se configura un \\\"tcp-encap-profile\\\" y se recibe una secuencia de paquetes espec\u00edficos, se observar\u00e1 una falla fluida y un reinicio. Este problema afecta a Juniper Networks Junos OS en la serie SRX: * Todas las versiones anteriores a 20.4R3-S8; * Versiones 21.2 anteriores a 21.2R3-S6; * Versiones 21.3 anteriores a 21.3R3-S5; * Versiones 21.4 anteriores a 21.4R3-S5; * Versiones 22.1 anteriores a 22.1R3-S3; * Versiones 22.2 anteriores a 22.2R3-S3; * Versiones 22.3 anteriores a 22.3R3-S1; * Versiones 22.4 anteriores a 22.4R2-S2, 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    "vulnrichment": {
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attacker to cause a Denial of Service (DoS).\u003c/p\u003e\u003cp\u003eIn a remote access VPN scenario, if a \\\"tcp-encap-profile\\\" is configured and a sequence of specific packets is received, a flowd crash and restart will be observed.\u003c/p\u003e\u003cp\u003eThis issue affects Juniper Networks Junos OS on SRX Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions earlier than 20.4R3-S8;\u003c/li\u003e\u003cli\u003e21.2 versions earlier than 21.2R3-S6;\u003c/li\u003e\u003cli\u003e21.3 versions earlier than 21.3R3-S5;\u003c/li\u003e\u003cli\u003e21.4 versions earlier than 21.4R3-S5;\u003c/li\u003e\u003cli\u003e22.1 versions earlier than 22.1R3-S3;\u003c/li\u003e\u003cli\u003e22.2 versions earlier than 22.2R3-S3;\u003c/li\u003e\u003cli\u003e22.3 versions earlier than 22.3R3-S1;\u003c/li\u003e\u003cli\u003e22.4 versions earlier than 22.4R2-S2, 22.4R3.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\\n\\n\"}], \"value\": \"\\nA Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).\\n\\nIn a remote access VPN scenario, if a \\\"tcp-encap-profile\\\" is configured and a sequence of specific packets is received, a flowd crash and restart will be observed.\\n\\nThis issue affects Juniper Networks Junos OS on SRX Series:\\n\\n\\n\\n  *  All versions earlier than 20.4R3-S8;\\n  *  21.2 versions earlier than 21.2R3-S6;\\n  *  21.3 versions earlier than 21.3R3-S5;\\n  *  21.4 versions earlier than 21.4R3-S5;\\n  *  22.1 versions earlier than 22.1R3-S3;\\n  *  22.2 versions earlier than 22.2R3-S3;\\n  *  22.3 versions earlier than 22.3R3-S1;\\n  *  22.4 versions earlier than 22.4R2-S2, 22.4R3.\\n\\n\\n\\n\\n\\n\\n\"}], \"exploits\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eJuniper SIRT is not aware of any malicious exploitation of this vulnerability.\u003c/p\u003e\"}], \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\\n\\n\"}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"version\": \"3.1\"}, \"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-415\", \"description\": \"CWE-415 Double Free\", \"lang\": \"en\", \"type\": \"CWE\"}]}, {\"descriptions\": [{\"description\": \"Denial of Service (DoS)\", \"lang\": \"en\"}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2024-01-12T00:54:51.832Z\"}, \"references\": [{\"tags\": [\"vendor-advisory\"], \"url\": \"https://supportportal.juniper.net/JSA75747\"}, {\"tags\": [\"technical-description\"], \"url\": \"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H\"}], \"solutions\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eThe following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 21.4R3-S5, 22.1R3-S3, 22.2R3-S3, 22.3R3-S1, 22.4R2-S2, 22.4R3, 23.2R1, and all subsequent releases.\u003c/p\u003e\"}], \"value\": \"The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 21.4R3-S5, 22.1R3-S3, 22.2R3-S3, 22.3R3-S1, 22.4R2-S2, 22.4R3, 23.2R1, and all subsequent releases.\\n\\n\"}], \"source\": {\"advisory\": \"JSA75747\", \"defect\": [\"1721936\"], \"discovery\": \"USER\"}, \"timeline\": [{\"lang\": \"en\", \"time\": \"2024-01-10T17:00:00.000Z\", \"value\": \"Initial Publication\"}], \"title\": \"Junos OS: SRX Series: When \\\"tcp-encap\\\" is configured and specific packets are received flowd will crash\", \"workarounds\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eThere are no known workarounds for this issue.\u003c/p\u003e\"}], \"value\": \"There are no known workarounds for this issue.\\n\\n\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-av217\"}}, \"adp\": [{\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-21606\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-01-12T15:48:53.618395Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2025-06-17T21:07:44.962Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-21606\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"juniper\", \"dateReserved\": \"2023-12-27T19:38:25.707Z\", \"datePublished\": \"2024-01-12T00:54:51.832Z\", \"dateUpdated\": \"2024-08-01T22:27:35.875Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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.