CVE-2023-44193 (GCVE-0-2023-44193)

Vulnerability from cvelistv5 – Published: 2023-10-12 23:04 – Updated: 2024-09-17 16:10
VLAI
Title
Junos OS: MX Series: An FPC crash is observed when CFM is enabled in a VPLS scenario and a specific LDP related command is run
Summary
An Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS). On all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition. This issue affects: Juniper Networks Junos OS on MX Series: * All versions prior to 20.4R3-S7; * 21.1 versions prior to 21.1R3-S5; * 21.2 versions prior to 21.2R3-S4; * 21.3 versions prior to 21.3R3-S4; * 21.4 versions prior to 21.4R3-S3; * 22.1 versions prior to 22.1R3-S1; * 22.2 versions prior to 22.2R2-S1, 22.2R3; * 22.3 versions prior to 22.3R1-S2, 22.3R2.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-401 - Improper Release of Memory Before Removing Last Reference
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 0 , < 20.4R3-S7 (semver)
Affected: 21.1 , < 21.1R3-S5 (semver)
Affected: 21.2 , < 21.2R3-S4 (semver)
Affected: 21.3 , < 21.3R3-S4 (semver)
Affected: 21.4 , < 21.4R3-S3 (semver)
Affected: 22.1 , < 22.1R3-S1 (semver)
Affected: 22.2 , < 22.2R2-S1, 22.2R3 (semver)
Affected: 22.3 , < 22.3R1-S2, 22.3R2 (semver)
Create a notification for this product.
Date Public
2023-10-11 16:00
Show details on NVD website
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"\\nAn Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS).\\n\\nOn all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition.\\n\\nThis issue affects:\\n\\nJuniper Networks Junos OS on MX Series:\\n\\n\\n\\n  *  All versions prior to 20.4R3-S7;\\n  *  21.1 versions prior to 21.1R3-S5;\\n  *  21.2 versions prior to 21.2R3-S4;\\n  *  21.3 versions prior to 21.3R3-S4;\\n  *  21.4 versions prior to 21.4R3-S3;\\n  *  22.1 versions prior to 22.1R3-S1;\\n  *  22.2 versions prior to 22.2R2-S1, 22.2R3;\\n  *  22.3 versions prior to 22.3R1-S2, 22.3R2.\\n\\n\\n\\n\\n\\n\\n\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad de liberaci\\u00f3n inadecuada de memoria antes de eliminar la \\u00faltima referencia en Packet Forwarding Engine (PFE) de Juniper Networks Junos OS permite que un atacante local con pocos privilegios provoque una falla del FPC, lo que lleva a una Denegaci\\u00f3n de Servicio (DoS). En todas las series Junos MX con MPC1 - MPC9, LC480, LC2101, MX10003 y MX80, cuando Connectivity-Fault-Management (CFM) est\\u00e1 habilitada en un escenario VPLS y se ejecuta un comando relacionado con LDP espec\\u00edfico, un FPC fallar\\u00e1 y se reiniciar\\u00e1. La ejecuci\\u00f3n continua de este comando LDP espec\\u00edfico puede provocar una condici\\u00f3n sostenida de Denegaci\\u00f3n de Servicio. Este problema afecta a: Juniper Networks Junos OS en la serie MX: * Todas las versiones anteriores a 20.4R3-S7; * Versiones 21.1 anteriores a 21.1R3-S5; * Versiones 21.2 anteriores a 21.2R3-S4; * Versiones 21.3 anteriores a 21.3R3-S4; * Versiones 21.4 anteriores a 21.4R3-S3; * Versiones 22.1 anteriores a 22.1R3-S1; * Versiones 22.2 anteriores a 22.2R2-S1, 22.2R3; * Versiones 22.3 anteriores a 22.3R1-S2, 22.3R2.\"}]",
      "id": "CVE-2023-44193",
      "lastModified": "2024-11-21T08:25:24.877",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"sirt@juniper.net\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
      "published": "2023-10-13T00:15:12.377",
      "references": "[{\"url\": \"https://supportportal.juniper.net/JSA73157\", \"source\": \"sirt@juniper.net\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://supportportal.juniper.net/JSA73157\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "sirt@juniper.net",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"sirt@juniper.net\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-401\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-401\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-44193\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2023-10-13T00:15:12.377\",\"lastModified\":\"2024-11-21T08:25:24.877\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"\\nAn Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS).\\n\\nOn all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition.\\n\\nThis issue affects:\\n\\nJuniper Networks Junos OS on MX Series:\\n\\n\\n\\n  *  All versions prior to 20.4R3-S7;\\n  *  21.1 versions prior to 21.1R3-S5;\\n  *  21.2 versions prior to 21.2R3-S4;\\n  *  21.3 versions prior to 21.3R3-S4;\\n  *  21.4 versions prior to 21.4R3-S3;\\n  *  22.1 versions prior to 22.1R3-S1;\\n  *  22.2 versions prior to 22.2R2-S1, 22.2R3;\\n  *  22.3 versions prior to 22.3R1-S2, 22.3R2.\\n\\n\\n\\n\\n\\n\\n\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de liberaci\u00f3n inadecuada de memoria antes de eliminar la \u00faltima referencia en Packet Forwarding Engine (PFE) de Juniper Networks Junos OS permite que un atacante local con pocos privilegios provoque una falla del FPC, lo que lleva a una Denegaci\u00f3n de Servicio (DoS). En todas las series Junos MX con MPC1 - MPC9, LC480, LC2101, MX10003 y MX80, cuando Connectivity-Fault-Management (CFM) est\u00e1 habilitada en un escenario VPLS y se ejecuta un comando relacionado con LDP espec\u00edfico, un FPC fallar\u00e1 y se reiniciar\u00e1. La ejecuci\u00f3n continua de este comando LDP espec\u00edfico puede provocar una condici\u00f3n sostenida de Denegaci\u00f3n de Servicio. Este problema afecta a: Juniper Networks Junos OS en la serie MX: * Todas las versiones anteriores a 20.4R3-S7; * Versiones 21.1 anteriores a 21.1R3-S5; * Versiones 21.2 anteriores a 21.2R3-S4; * Versiones 21.3 anteriores a 21.3R3-S4; * Versiones 21.4 anteriores a 21.4R3-S3; * Versiones 22.1 anteriores a 22.1R3-S1; * Versiones 22.2 anteriores a 22.2R2-S1, 22.2R3; * Versiones 22.3 anteriores a 22.3R1-S2, 22.3R2.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"20.4\",\"matchCriteriaId\":\"E3A96966-5060-4139-A124-D4E2C879FD6C\"},{\"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\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:*\",\"matchCriteriaId\":\"09876787-A40A-4340-9C12-8628C325353B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"41615104-C17E-44DA-AB0D-6E2053BD4EF4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r3-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"1981DE38-36B5-469D-917E-92717EE3ED53\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r3-s3:*:*:*:*:*:*\",\"matchCriteriaId\":\"AFA68ACD-AAE5-4577-B734-23AAF77BC85A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r3-s4:*:*:*:*:*:*\",\"matchCriteriaId\":\"65948ABC-22BB-46D5-8545-0806EDB4B86E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r3-s5:*:*:*:*:*:*\",\"matchCriteriaId\":\"283E41CB-9A90-4521-96DC-F31AA592CFD8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.4:r3-s6:*:*:*:*:*:*\",\"matchCriteriaId\":\"14EEA504-CBC5-4F6F-889A-D505EC4BB5B1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"6FDB5B7D-FB37-47E3-8678-B9ED578CCA5F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"625BA7E6-D2AD-4A48-9B94-24328BE5B06A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r1-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F462F4E3-762C-429F-8D25-5521100DD37C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C0BC9DAC-D6B5-4C5E-8C73-6E550D9A30F5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r2-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"689FE1AE-7A85-4FB6-AB02-E732F23581B6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r2-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"79E56DAC-75AD-4C81-9835-634B40C15DA6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r3:*:*:*:*:*:*\",\"matchCriteriaId\":\"A0040FE2-7ECD-4755-96CE-E899BA298E0C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r3-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"076AB086-BB79-4583-AAF7-A5233DFB2F95\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r3-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"72E2DDF6-01DF-4880-AB60-B3DA3281E88D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r3-s3:*:*:*:*:*:*\",\"matchCriteriaId\":\"54010163-0810-4CF5-95FE-7E62BC6CA4F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:21.1:r3-s4:*:*:*:*:*:*\",\"matchCriteriaId\":\"5C1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Advisory\"]},{\"url\":\"https://supportportal.juniper.net/JSA73157\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://supportportal.juniper.net/JSA73157\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T19:59:51.669Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-44193\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-17T15:53:55.982862Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-17T16:10:39.775Z\"}}], \"cna\": {\"title\": \"Junos OS: MX Series: An FPC crash is observed when CFM is enabled in a VPLS scenario and a specific LDP related command is run\", \"source\": {\"defect\": [\"1668419\"], \"advisory\": \"JSA73157\", \"discovery\": \"USER\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Juniper Networks\", \"product\": \"Junos OS\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"20.4R3-S7\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"21.1\", \"lessThan\": \"21.1R3-S5\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"21.2\", \"lessThan\": \"21.2R3-S4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"21.3\", \"lessThan\": \"21.3R3-S4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"21.4\", \"lessThan\": \"21.4R3-S3\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"22.1\", \"lessThan\": \"22.1R3-S1\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"22.2\", \"lessThan\": \"22.2R2-S1, 22.2R3\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"22.3\", \"lessThan\": \"22.3R1-S2, 22.3R2\", \"versionType\": \"semver\"}], \"platforms\": [\"MX Series\"], \"defaultStatus\": \"unaffected\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eJuniper SIRT is not aware of any malicious exploitation of this vulnerability.\u003c/p\u003e\", \"base64\": false}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-10-11T16:00:00.000Z\", \"value\": \"Initial Publication\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S7, 21.1R3-S5, 21.2R3-S4, 21.3R3-S4, 21.4R3-S3, 22.1R3-S1, 22.2R2-S1, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThe following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S7, 21.1R3-S5, 21.2R3-S4, 21.3R3-S4, 21.4R3-S3, 22.1R3-S1, 22.2R2-S1, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.\u003c/p\u003e\", \"base64\": false}]}], \"datePublic\": \"2023-10-11T16:00:00.000Z\", \"references\": [{\"url\": \"https://supportportal.juniper.net/JSA73157\", \"tags\": [\"vendor-advisory\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"This issue can be avoided by disabling CFM MIP functionality.\\n\\n [ protocols oam ethernet connectivity-fault-management maintenance-domain mip-half-function none ]\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThis issue can be avoided by disabling CFM MIP functionality.\u003c/p\u003e \u003ctt\u003e[ protocols oam ethernet connectivity-fault-management maintenance-domain mip-half-function none ]\u003c/tt\u003e\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-av217\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"\\nAn Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS).\\n\\nOn all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition.\\n\\nThis issue affects:\\n\\nJuniper Networks Junos OS on MX Series:\\n\\n\\n\\n  *  All versions prior to 20.4R3-S7;\\n  *  21.1 versions prior to 21.1R3-S5;\\n  *  21.2 versions prior to 21.2R3-S4;\\n  *  21.3 versions prior to 21.3R3-S4;\\n  *  21.4 versions prior to 21.4R3-S3;\\n  *  22.1 versions prior to 22.1R3-S1;\\n  *  22.2 versions prior to 22.2R2-S1, 22.2R3;\\n  *  22.3 versions prior to 22.3R1-S2, 22.3R2.\\n\\n\\n\\n\\n\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\\n\\n\u003cp\u003eAn Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS).\u003c/p\u003e\u003cp\u003eOn all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition.\u003c/p\u003e\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003eJuniper Networks Junos OS on MX Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions prior to 20.4R3-S7;\u003c/li\u003e\u003cli\u003e21.1 versions prior to 21.1R3-S5;\u003c/li\u003e\u003cli\u003e21.2 versions prior to 21.2R3-S4;\u003c/li\u003e\u003cli\u003e21.3 versions prior to 21.3R3-S4;\u003c/li\u003e\u003cli\u003e21.4 versions prior to 21.4R3-S3;\u003c/li\u003e\u003cli\u003e22.1 versions prior to 22.1R3-S1;\u003c/li\u003e\u003cli\u003e22.2 versions prior to 22.2R2-S1, 22.2R3;\u003c/li\u003e\u003cli\u003e22.3 versions prior to 22.3R1-S2, 22.3R2.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\\n\\n\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"CWE-401 Improper Release of Memory Before Removing Last Reference\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"description\": \"Denial of Service (DoS)\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"\\nFor this issue to occur, following minimal configuration is required.\\n\\n[ ldp interface \u003cinterface1\u003e ]\\n[ interfaces \u003cinterface1\u003e flexible-vlan-tagging ]\\n[ interfaces \u003cinterface1\u003e encapsulation vlan-vpls ]\\n[ protocols oam ethernet connectivity-fault-management maintenance-domain \u003cmd-name\u003e interface \u003cinterface2\u003e ]\\n[ routing-instances \u003cmd-name\u003e instance-type vpls ]\\n[ routing-instances \u003cmd-name\u003e interface \u003cinterface1\u003e ]\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\\n\\n\u003cp\u003eFor this issue to occur, following minimal configuration is required.\u003c/p\u003e\u003ccode\u003e[ ldp interface \u0026lt;interface1\u0026gt; ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ interfaces \u0026lt;interface1\u0026gt; flexible-vlan-tagging ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ interfaces \u0026lt;interface1\u0026gt; encapsulation vlan-vpls ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ protocols oam ethernet connectivity-fault-management maintenance-domain \u0026lt;md-name\u0026gt; interface \u0026lt;interface2\u0026gt; ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ routing-instances \u0026lt;md-name\u0026gt; instance-type vpls ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ routing-instances \u0026lt;md-name\u0026gt; interface \u0026lt;interface1\u0026gt; ]\u003c/code\u003e\\n\\n\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2023-10-12T23:04:00.332Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-44193\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-09-17T16:10:44.571Z\", \"dateReserved\": \"2023-09-26T19:30:27.955Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2023-10-12T23:04:00.332Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.