CVE-2025-52955 (GCVE-0-2025-52955)
Vulnerability from cvelistv5
Published
2025-07-11 14:42
Modified
2025-08-08 16:24
Severity ?
4.1 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
5.6 (Medium) - CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
CWE
  • CWE-131 - Incorrect Calculation of Buffer Size
Summary
An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a memory corruption that leads to a rpd crash.  When the logical interface using a routing instance flaps continuously, specific updates are sent to the jflow/sflow modules. This results in memory corruption, leading to an rpd crash and restart.  Continued receipt of these specific updates will cause a sustained Denial of Service condition. This issue affects Junos OS: * All versions before 21.2R3-S9, * All versions of 21.4, * All versions of 22.2, * from 22.4 before 22.4R3-S7, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S4, * from 24.2 before 24.2R2. Junos OS Evolved:  * All versions of 21.2-EVO,  * All versions of 21.4-EVO,  * All versions of 22.2-EVO,  * from 22.4 before 22.4R3-S7-EVO,  * from 23.2 before 23.2R2-S3-EVO,  * from 23.4 before 23.4R2-S4-EVO,  * from 24.2 before 24.2R2-EVO.
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Version: 0   ≤
Version: 21.4   ≤
Version: 22.2   ≤
Version: 22.4   ≤
Version: 23.2   ≤
Version: 23.4   ≤
Version: 24.2   ≤
Create a notification for this product.
   Juniper Networks Junos OS Evolved Version: 0   ≤
Version: 21.4   ≤
Version: 22.2   ≤
Version: 22.4   ≤
Version: 23.2   ≤
Version: 23.4   ≤
Version: 24.2   ≤
Create a notification for this product.
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      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-52955\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-07-11T20:09:13.568277Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-07-11T20:09:18.929Z\"}}], \"cna\": {\"title\": \"Junos OS and Junos OS Evolved: When jflow/sflow is configured continuous logical interface flaps causes rpd crash and restart\", \"source\": {\"defect\": [\"1834075\"], \"advisory\": \"JSA100062\", \"discovery\": \"USER\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.1, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": 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\"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Juniper Networks\", \"product\": \"Junos OS\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"21.2R3-S9\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"21.4\", \"lessThan\": \"21.4*\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"22.2\", \"lessThan\": \"22.2*\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"22.4\", \"lessThan\": \"22.4R3-S7\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.2\", \"lessThan\": \"23.2R2-S3\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.4\", \"lessThan\": \"23.4R2-S4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"24.2\", \"lessThan\": \"24.2R2\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Juniper Networks\", \"product\": \"Junos OS Evolved\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"21.2*-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"21.4\", \"lessThan\": \"21.4*-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"22.2\", \"lessThan\": \"22.2*-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"22.4\", \"lessThan\": \"22.4R3-S7-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.2\", \"lessThan\": \"23.2R2-S3-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.4\", \"lessThan\": \"23.4R2-S4-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"24.2\", \"lessThan\": \"24.2R2-EVO\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\", \"base64\": false}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"The following software releases have been updated to resolve this specific issue: \\n\\nJunos OS: 21.2R3-S9, 22.4R3-S7, 23.2R2-S3, 23.4R2-S4, 24.2R2, 24.4R1, and all subsequent releases.\\n\\nJunos OS Evolved: 22.4R3-S7-EVO, 23.2R2-S3-EVO, 23.4R2-S4-EVO, 24.2R2-EVO, 24.4R1-EVO,\\u00a0and all subsequent releases.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"The following software releases have been updated to resolve this specific issue: \u003cbr\u003e\u003cbr\u003eJunos OS: 21.2R3-S9, 22.4R3-S7, 23.2R2-S3, 23.4R2-S4, 24.2R2, 24.4R1, and all subsequent releases.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eJunos OS Evolved: 22.4R3-S7-EVO, \u003c/span\u003e23.2R2-S3-EVO, 23.4R2-S4-EVO, 24.2R2-EVO, 24.4R1-EVO,\u0026nbsp;and all subsequent releases.\u003cbr\u003e\u003cbr\u003e\", \"base64\": false}]}], \"datePublic\": \"2025-07-09T16:00:00.000Z\", \"references\": [{\"url\": \"https://supportportal.juniper.net/JSA100062\", \"tags\": [\"vendor-advisory\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Limit CLI access to trusted users shall avoid this situation\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Limit CLI access to trusted users shall avoid this situation\u003cbr\u003e\u003cbr\u003e\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a memory corruption that leads\\u00a0to a rpd crash.\\u00a0\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\nWhen\\nthe logical interface using a routing instance flaps continuously, specific updates are sent to the jflow/sflow modules. This results in memory corruption, leading to an rpd crash and restart.\\u00a0\\n\\n\\nContinued receipt of these specific updates will cause a sustained Denial of Service condition.\\n\\n\\nThis issue affects Junos OS:\\n\\n  *  All versions before 21.2R3-S9, \\n  *  All versions of 21.4, \\n  *  All versions of 22.2, \\n  *  from 22.4 before 22.4R3-S7, \\n  *  from 23.2 before 23.2R2-S3, \\n  *  from 23.4 before 23.4R2-S4, \\n  *  from 24.2 before 24.2R2.\\n\\n\\nJunos OS Evolved:\\u00a0\\n\\n\\n\\n  *  All versions of 21.2-EVO,\\u00a0\\n  *  All versions of 21.4-EVO,\\u00a0\\n  *  All versions of 22.2-EVO,\\u00a0\\n  *  from 22.4 before 22.4R3-S7-EVO,\\u00a0\\n  *  from 23.2 before 23.2R2-S3-EVO,\\u00a0\\n  *  from 23.4 before 23.4R2-S4-EVO,\\u00a0\\n  *  from 24.2 before 24.2R2-EVO.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eAn Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a memory corruption that leads\u0026nbsp;to a rpd crash.\u0026nbsp;\u003cbr\u003e\u003cbr\u003e\u003c/span\u003e\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\u003cp\u003eWhen\\nthe logical interface using a routing instance flaps continuously, specific updates are sent to the jflow/sflow modules. This results in memory corruption, leading to an rpd crash and restart.\u0026nbsp;\u003c/p\u003e\u003cbr\u003eContinued receipt of these specific updates will cause a sustained Denial of Service condition.\u003cbr\u003e\u003ctt\u003e\u003cbr\u003e\u003c/tt\u003e\u003cbr\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eThis issue affects Junos OS:\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\u003cli\u003eAll versions before 21.2R3-S9, \u003c/li\u003e\u003cli\u003eAll versions of 21.4, \u003c/li\u003e\u003cli\u003eAll versions of 22.2, \u003c/li\u003e\u003cli\u003efrom 22.4 before 22.4R3-S7, \u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S3, \u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S4, \u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2.\u003c/li\u003e\u003c/ul\u003e\u003c/span\u003e\u003cp\u003eJunos OS Evolved:\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions of 21.2-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003eAll versions of 21.4-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003eAll versions of 22.2-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.4 before 22.4R3-S7-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S3-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S4-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2-EVO.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-131\", \"description\": \"CWE-131 Incorrect Calculation of Buffer Size\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"This issue only happens when jflow is configured:\\n\\n  [services flow-monitoring (version-ipfix|version9)]\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThis issue only happens when jflow is configured:\u003c/p\u003e\u003ccode\u003e  [services flow-monitoring (version-ipfix|version9)]\u003c/code\u003e\u003cbr\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2025-08-08T16:24:36.871Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-52955\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-08-08T16:24:36.871Z\", \"dateReserved\": \"2025-06-23T13:16:01.410Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2025-07-11T14:42:20.206Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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