cve-2024-39536
Vulnerability from cvelistv5
Published
2024-07-11 16:13
Modified
2024-08-02 04:26
Severity ?
5.3 (Medium) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
6.0 (Medium) - CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.0 (Medium) - CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS score ?
Summary
Junos OS and Junos OS Evolved: Flaps of BFD sessions with authentication cause a ppmd memory leak
References
Impacted products
| ▼ | Vendor | Product |
|---|---|---|
| Juniper Networks | Junos OS | |
| Juniper Networks | Junos OS Evolved |
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"value": "To be exposed to this issue, BFD with authentication like in the following examples needs to be \n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003econfigured\u003c/span\u003e:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e[ protocols \u0026lt;protocol\u0026gt; ... bfd-liveness-detection\u0026nbsp;authentication ]\u003cbr\u003e[ routing-options ... bfd-liveness-detection authentication ]\u003c/tt\u003e"
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"value": "A Missing Release of Memory after Effective Lifetime vulnerability in the Periodic Packet Management Daemon (ppmd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a \n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eDenial-of-Service (DoS)\u003c/span\u003e.\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eWhen a\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eBFD session configured with authentication \u003c/span\u003eflaps,\u0026nbsp;\u003c/span\u003eppmd memory can leak. Whether the leak happens depends on a\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003erace condition which is outside the attackers control. This issue only affects BFD operating in distributed aka delegated (which is the default behavior) or inline mode.\u003c/span\u003e\u003c/span\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cbr\u003e\u003c/span\u003e\u003c/p\u003e\u003cp\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eWhether the leak occurs can be monitored with the following CLI command:\u003c/span\u003e\u003c/p\u003e\u003cp\u003e\u0026gt; show ppm request-queue\u003cbr\u003e\u003c/p\u003e\u003ctt\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eFPC \u0026nbsp; \u0026nbsp; Pending-request\u003c/span\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efpc0\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;2\u003c/span\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003erequest-total-pending: 2\u003c/span\u003e\n\n\u003cbr\u003e\u003c/span\u003e\u003c/tt\u003e\u003cp\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003ewhere a continuously increasing number of pending requests is indicative of the leak.\u0026nbsp;\u003c/span\u003e\u003c/p\u003e\u003cp\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cbr\u003e\u003c/span\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\n\n\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003eJunos OS:\u003cbr\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 21.2R3-S8,\u003c/li\u003e\u003cli\u003e21.4 versions before 21.4R3-S7,\u003c/li\u003e\u003cli\u003e22.1 versions before 22.1R3-S4,\u003c/li\u003e\u003cli\u003e22.2 versions before 22.2R3-S4, \u003c/li\u003e\u003cli\u003e22.3 versions before 22.3R3,\u003c/li\u003e\u003cli\u003e22.4 versions before 22.4R2-S2, 22.4R3.\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003eJunos OS Evolved:\u003cbr\u003e\u003cul\u003e\u003cli\u003eAll versions before 21.2R3-S8-EVO,\u003c/li\u003e\u003cli\u003e21.4-EVO versions before 21.4R3-S7-EVO,\u003c/li\u003e\u003cli\u003e22.2-EVO versions before 22.2R3-S4-EVO,\u003c/li\u003e\u003cli\u003e22.3-EVO versions before 22.3R3-EVO,\u003c/li\u003e\u003cli\u003e22.4-EVO versions before 22.4R3-EVO.\u003c/li\u003e\u003c/ul\u003e"
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"title": "Junos OS and Junos OS Evolved: Flaps of BFD sessions with authentication cause a ppmd memory leak",
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"nvd": "{\"cve\":{\"id\":\"CVE-2024-39536\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2024-07-11T17:15:11.190\",\"lastModified\":\"2024-07-12T15:15:11.040\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A Missing Release of Memory after Effective Lifetime vulnerability in the Periodic Packet Management Daemon (ppmd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a \\n\\nDenial-of-Service (DoS).\\n\\n\\nWhen a\u00a0BFD session configured with authentication flaps,\u00a0ppmd memory can leak. Whether the leak happens depends on a\u00a0race condition which is outside the attackers control. This issue only affects BFD operating in distributed aka delegated (which is the default behavior) or inline mode.\\n\\n\\n\\nWhether the leak occurs can be monitored with the following CLI command:\\n\\n\u003e show ppm request-queue\\n\\n\\nFPC \u00a0 \u00a0 Pending-request\\nfpc0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a02\\nrequest-total-pending: 2\\n\\n\\nwhere a continuously increasing number of pending requests is indicative of the leak.\u00a0\\n\\n\\n\\n\\n\\n\\n\\n\\nThis issue affects:\\n\\nJunos OS:\\n\\n\\n * All versions before 21.2R3-S8,\\n * 21.4 versions before 21.4R3-S7,\\n * 22.1 versions before 22.1R3-S4,\\n * 22.2 versions before 22.2R3-S4, \\n * 22.3 versions before 22.3R3,\\n * 22.4 versions before 22.4R2-S2, 22.4R3.\\n\\n\\n\\nJunos OS Evolved:\\n * All versions before 21.2R3-S8-EVO,\\n * 21.4-EVO versions before 21.4R3-S7-EVO,\\n * 22.2-EVO versions before 22.2R3-S4-EVO,\\n * 22.3-EVO versions before 22.3R3-EVO,\\n * 22.4-EVO versions before 22.4R3-EVO.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de liberaci\u00f3n de memoria faltante despu\u00e9s de la vida \u00fatil efectiva en Periodic Packet Management Daemon (ppmd) de Juniper Networks Junos OS y Junos OS Evolved permite que un atacante adyacente no autenticado provoque una denegaci\u00f3n de servicio (DoS). Cuando una sesi\u00f3n BFD se configura con solapas de autenticaci\u00f3n, la memoria ppmd puede perderse. Que se produzca la fuga depende de una condici\u00f3n de ejecuci\u00f3n que est\u00e1 fuera del control de los atacantes. Este problema solo afecta a BFD que opera en modo distribuido, tambi\u00e9n conocido como delegado (que es el comportamiento predeterminado) o en l\u00ednea. Si se produce la fuga se puede monitorear con el siguiente comando CLI: \u0026gt; show ppm request-queue FPC Pending-request fpc0 2 request-total-pending: 2 donde un n\u00famero continuamente creciente de solicitudes pendientes es indicativo de la fuga. Este problema afecta a: Junos OS: * Todas las versiones anteriores a 21.2R3-S8, * Versiones 21.4 anteriores a 21.4R3-S7, * Versiones 22.1 anteriores a 22.1R3-S4, * Versiones 22.2 anteriores a 22.2R3-S4, * Versiones 22.3 anteriores a 22.3R3, * Versiones 22.4 anteriores a 22.4R2-S2, 22.4R3, * Versiones 23.1 anteriores a 23.1R2. Junos OS Evolved: * Todas las versiones anteriores a 21.2R3-S8-EVO, * Versiones 21.4-EVO anteriores a 21.4R3-S7-EVO, * Versiones 22.2-EVO anteriores a 22.2R3-S4-EVO, * Versiones 22.3-EVO anteriores a 22.3R3- EVO, *versiones 22.4-EVO anteriores a 22.4R3-EVO, *versiones 23.2-EVO anteriores a 23.2R1-EVO.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"attackVector\":\"ADJACENT\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnerableSystemConfidentiality\":\"NONE\",\"vulnerableSystemIntegrity\":\"NONE\",\"vulnerableSystemAvailability\":\"HIGH\",\"subsequentSystemConfidentiality\":\"NONE\",\"subsequentSystemIntegrity\":\"NONE\",\"subsequentSystemAvailability\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirements\":\"NOT_DEFINED\",\"integrityRequirements\":\"NOT_DEFINED\",\"availabilityRequirements\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnerableSystemConfidentiality\":\"NOT_DEFINED\",\"modifiedVulnerableSystemIntegrity\":\"NOT_DEFINED\",\"modifiedVulnerableSystemAvailability\":\"NOT_DEFINED\",\"modifiedSubsequentSystemConfidentiality\":\"NOT_DEFINED\",\"modifiedSubsequentSystemIntegrity\":\"NOT_DEFINED\",\"modifiedSubsequentSystemAvailability\":\"NOT_DEFINED\",\"safety\":\"NOT_DEFINED\",\"automatable\":\"NOT_DEFINED\",\"recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\",\"baseScore\":6.0,\"baseSeverity\":\"MEDIUM\"}}],\"cvssMetricV31\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"references\":[{\"url\":\"https://supportportal.juniper.net/JSA82996\",\"source\":\"sirt@juniper.net\"}]}}"
}
}
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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.