CVE-2024-21587
Vulnerability from cvelistv5
Published
2024-01-12 00:51
Modified
2024-08-01 22:27
Severity ?
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Junos OS: MX Series: Memory leak in bbe-smgd process if BFD liveness detection for DHCP subscribers is enabled
References
sirt@juniper.nethttps://supportportal.juniper.net/JSA75725Vendor Advisory
sirt@juniper.nethttps://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:LThird Party Advisory
Impacted products
Juniper NetworksJunos OS
Show details on NVD website

To clipboard 

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              "value": "\u003cp\u003eDHCP liveness detection is enabled and configured as follows:\u003c/p\u003e\u003ccode\u003e  [edit forwarding-options dhcp-relay]\u003c/code\u003e\u003cbr/\u003e\u003ccode\u003e  user@host# edit liveness-detection\u003c/code\u003e\u003cbr/\u003e"
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              "value": "\n\n\u003cp\u003eAn Improper Handling of Exceptional Conditions vulnerability in the broadband edge subscriber management daemon (bbe-smgd) of Juniper Networks Junos OS on MX Series allows an attacker directly connected to the vulnerable system who repeatedly flaps DHCP subscriber sessions to cause a slow memory leak, ultimately leading to a Denial of Service (DoS). Memory can only be recovered by manually restarting bbe-smgd.\u003c/p\u003e\u003cp\u003eThis issue only occurs if BFD liveness detection for DHCP subscribers is enabled. Systems without BFD liveness detection enabled are not vulnerable to this issue.\u003c/p\u003e\u003cp\u003eIndication of the issue can be observed by periodically executing the \u0027show system processes extensive\u0027 command, which will indicate an increase in memory allocation for bbe-smgd. A small amount of memory is leaked every time a DHCP subscriber logs in, which will become visible over time, ultimately leading to memory starvation.\u003c/p\u003e\u003ccode\u003euser@junos\u0026gt; show system processes extensive | match bbe-smgd\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e13071 root 24 0 415M 201M select 0 0:41 7.28% bbe-smgd{bbe-smgd}\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e13071 root 20 0 415M 201M select 1 0:04 0.00% bbe-smgd{bbe-smgd}\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e...\u003c/code\u003e\u003cbr\u003e\u003ccode\u003euser@junos\u0026gt; show system processes extensive | match bbe-smgd\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e13071 root 20 0 420M 208M select 0 4:33 0.10% bbe-smgd{bbe-smgd}\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e13071 root 20 0 420M 208M select 0 0:12 0.00% bbe-smgd{bbe-smgd}\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e...\u003c/code\u003e\u003cbr\u003e\u003cp\u003eThis issue affects Juniper Networks Junos OS on MX Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions earlier than 20.4R3-S9;\u003c/li\u003e\u003cli\u003e21.2 versions earlier than 21.2R3-S7;\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-S4;\u003c/li\u003e\u003cli\u003e22.2 versions earlier than 22.2R3-S3;\u003c/li\u003e\u003cli\u003e22.3 versions earlier than 22.3R3-S2;\u003c/li\u003e\u003cli\u003e22.4 versions earlier than 22.4R2-S2, 22.4R3;\u003c/li\u003e\u003cli\u003e23.2 versions earlier than 23.2R1-S1, 23.2R2.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\n\n"
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              "value": "\u003cp\u003eThe following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S2, 22.4R2-S2, 22.4R3, 23.2R1-S1, 23.2R2, 23.4R1, and all subsequent releases.\u003c/p\u003e"
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      "title": "Junos OS: MX Series: Memory leak in bbe-smgd process if BFD liveness detection for DHCP subscribers is enabled",
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    "dateReserved": "2023-12-27T19:38:25.703Z",
    "dateUpdated": "2024-08-01T22:27:34.860Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-21587\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2024-01-12T01:15:46.290\",\"lastModified\":\"2024-01-19T17:44:35.830\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"\\nAn Improper Handling of Exceptional Conditions vulnerability in the broadband edge subscriber management daemon (bbe-smgd) of Juniper Networks Junos OS on MX Series allows an attacker directly connected to the vulnerable system who repeatedly flaps DHCP subscriber sessions to cause a slow memory leak, ultimately leading to a Denial of Service (DoS). Memory can only be recovered by manually restarting bbe-smgd.\\n\\nThis issue only occurs if BFD liveness detection for DHCP subscribers is enabled. Systems without BFD liveness detection enabled are not vulnerable to this issue.\\n\\nIndication of the issue can be observed by periodically executing the \u0027show system processes extensive\u0027 command, which will indicate an increase in memory allocation for bbe-smgd. A small amount of memory is leaked every time a DHCP subscriber logs in, which will become visible over time, ultimately leading to memory starvation.\\n\\nuser@junos\u003e show system processes extensive | match bbe-smgd\\n13071 root 24 0 415M 201M select 0 0:41 7.28% bbe-smgd{bbe-smgd}\\n13071 root 20 0 415M 201M select 1 0:04 0.00% bbe-smgd{bbe-smgd}\\n...\\nuser@junos\u003e show system processes extensive | match bbe-smgd\\n13071 root 20 0 420M 208M select 0 4:33 0.10% bbe-smgd{bbe-smgd}\\n13071 root 20 0 420M 208M select 0 0:12 0.00% bbe-smgd{bbe-smgd}\\n...\\nThis issue affects Juniper Networks Junos OS on MX Series:\\n\\n\\n\\n  *  All versions earlier than 20.4R3-S9;\\n  *  21.2 versions earlier than 21.2R3-S7;\\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-S4;\\n  *  22.2 versions earlier than 22.2R3-S3;\\n  *  22.3 versions earlier than 22.3R3-S2;\\n  *  22.4 versions earlier than 22.4R2-S2, 22.4R3;\\n  *  23.2 versions earlier than 23.2R1-S1, 23.2R2.\\n\\n\\n\\n\\n\\n\\n\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de manejo inadecuado de condiciones excepcionales en el demonio de administraci\u00f3n de suscriptores de borde de banda ancha (bbe-smgd) de Juniper Networks Junos OS en la serie MX permite que un atacante conectado directamente al sistema vulnerable altere repetidamente las sesiones de suscriptores DHCP para causar, en \u00faltima instancia, una p\u00e9rdida lenta de memoria. lo que lleva a una denegaci\u00f3n de servicio (DoS). La memoria s\u00f3lo se puede recuperar reiniciando bbe-smgd manualmente. Este problema solo ocurre si la detecci\u00f3n de actividad BFD para suscriptores de DHCP est\u00e1 habilitada. Los sistemas sin detecci\u00f3n de actividad BFD habilitada no son vulnerables a este problema. La indicaci\u00f3n del problema se puede observar ejecutando peri\u00f3dicamente el comando \u0027show system processes extensive\u0027, lo que indicar\u00e1 un aumento en la asignaci\u00f3n de memoria para bbe-smgd. Cada vez que un suscriptor de DHCP inicia sesi\u00f3n, se pierde una peque\u00f1a cantidad de memoria, lo que se har\u00e1 visible con el tiempo y, en \u00faltima instancia, provocar\u00e1 una falta de memoria. user@junos\u0026gt; show system processes extensive | match bbe-smgd 13071 root 24 0 415M 201M select 0 0:41 7.28% bbe-smgd{bbe-smgd} 13071 root 20 0 415M 201M select 1 0:04 0.00% bbe-smgd{bbe-smgd} ... user@junos\u0026gt; show system processes extensive | match bbe-smgd 13071 root 20 0 420M 208M select 0 4:33 0.10% bbe-smgd{bbe-smgd} 13071 root 20 0 420M 208M select 0 0:12 0.00% bbe-smgd{bbe-smgd} ... Esto El problema afecta a Juniper Networks Junos OS en la serie MX: * Todas las versiones anteriores a 20.4R3-S9; * Versiones 21.2 anteriores a 21.2R3-S7; * Versiones 21.3 anteriores a 21.3R3-S5; * Versiones 21.4 anteriores a 21.4R3-S5; * Versiones 22.1 anteriores a 22.1R3-S4; * Versiones 22.2 anteriores a 22.2R3-S3; * Versiones 22.3 anteriores a 22.3R3-S2; * Versiones 22.4 anteriores a 22.4R2-S2, 22.4R3; * Versiones 23.2 anteriores a 23.2R1-S1, 23.2R2.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6},{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-755\"}]},{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-755\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx10:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"52699E2B-450A-431C-81E3-DC4483C8B4F2\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx10000:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D97AF6F8-3D50-4D35-BCB1-54E3BEC69B9F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D5627740-42E3-4FB1-B8B9-0B768AFFA1EC\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx10004:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"84F7BB7E-3A52-4C23-A4D2-50E75C912AFC\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx10008:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D6F0EA2F-BF7E-45D0-B2B4-8A7B67A9475A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx10016:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C39DA74D-F5C7-4C11-857D-50631A110644\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx104:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F72C850A-0530-4DB7-A553-7E19F82122B5\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx150:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7FE2089C-F341-4DC1-B76D-633BC699306D\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2FEF33EB-B2E0-42EF-A1BB-D41021B6D08F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"27175D9A-CA2C-4218-8042-835E25DFCA43\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"00C7FC57-8ACF-45AA-A227-7E3B350FD24F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx204:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2754C2DF-DF6E-4109-9463-38B4E0465B77\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F4A26704-A6A4-4C4F-9E12-A0A0259491EF\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx304:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3F7FB0CC-624D-4AB9-A7AC-BB19838C3B22\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx40:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C982A2FF-A1F9-4830-BAB6-77CFCE1F093F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"104858BD-D31D-40E0-8524-2EC311F10EAC\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx5:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3B557965-0040-4048-B56C-F564FF28635B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx80:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EB875EBD-A3CD-4466-B2A3-39D47FF94592\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B5E08E1E-0FE4-4294-9497-BBFFECA2A220\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"3D361B23-A3C2-444B-BEB8-E231DA950567\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"20DDC6B7-BFC4-4F0B-8E68-442C23765BF2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"037BA01C-3F5C-4503-A633-71765E9EF774\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C54B047C-4B38-40C0-9855-067DCF7E48BD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"38984199-E332-4A9C-A4C0-78083D052E15\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"AA6526FB-2941-4D18-9B2E-472AD5A62A53\"},{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Advisory\"]},{\"url\":\"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L\",\"source\":\"sirt@juniper.net\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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