{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2024-39557", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2024-06-25T15:12:53.247Z", "datePublished": "2024-07-10T22:39:48.575Z", "dateUpdated": "2024-08-02T04:26:15.916Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [ { "lessThan": "21.4R3-S8-EVO", "status": "affected", "version": "0", "versionType": "semver" }, { "lessThan": "22.2R3-S4-EVO", "status": "affected", "version": "22.2-EVO", "versionType": "semver" }, { "lessThan": "22.3R3-S3-EVO", "status": "affected", "version": "22.3-EVO", "versionType": "semver" }, { "lessThan": "22.4R3-EVO", "status": "affected", "version": "22.4-EVO", "versionType": "semver" }, { "lessThan": "23.2R2-EVO", "status": "affected", "version": "23.2-EVO", "versionType": "semver" } ] } ], "datePublic": "2024-07-10T16:00:00.000Z", "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "An Uncontrolled Resource Consumption vulnerability in the \n\nLayer 2 Address Learning Daemon (l2ald)\n\n of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a memory leak, eventually exhausting all system memory, leading to a system crash and Denial of Service (DoS).

Certain MAC table updates cause a small amount of memory to leak.  Once memory utilization reaches its limit, the issue will result in a system crash and restart.

To identify the issue, execute the CLI command:

user@device> show platform application-info allocations app l2ald-agent
EVL Object Allocation Statistics:

Node   Application     Context Name                               Live   Allocs   Fails     Guids
re0   l2ald-agent               net::juniper::rtnh::L2Rtinfo       1069096 1069302   0         1069302
re0   l2ald-agent               net::juniper::rtnh::NHOpaqueTlv     114     195       0         195


This issue affects Junos OS Evolved:

" } ], "value": "An Uncontrolled Resource Consumption vulnerability in the \n\nLayer 2 Address Learning Daemon (l2ald)\n\n of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a memory leak, eventually exhausting all system memory, leading to a system crash and Denial of Service (DoS).\n\nCertain MAC table updates cause a small amount of memory to leak.  Once memory utilization reaches its limit, the issue will result in a system crash and restart.\n\nTo identify the issue, execute the CLI command:\n \nuser@device> show platform application-info allocations app l2ald-agent\nEVL Object Allocation Statistics:\n \n Node   Application     Context Name                               Live   Allocs   Fails     Guids\n re0   l2ald-agent               net::juniper::rtnh::L2Rtinfo       1069096 1069302   0         1069302\n re0   l2ald-agent               net::juniper::rtnh::NHOpaqueTlv     114     195       0         195\n\n\n\nThis issue affects Junos OS Evolved: \n\n\n * All versions before 21.4R3-S8-EVO,\n\n * from 22.2-EVO before 22.2R3-S4-EVO, \n * from 22.3-EVO before 22.3R3-S3-EVO, \n * from 22.4-EVO before 22.4R3-EVO, \n * from 23.2-EVO before 23.2R2-EVO." } ], "exploits": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability." } ], "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] }, { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "baseScore": 7.1, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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/R:A", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-400", "description": "CWE-400 Uncontrolled Resource Consumption", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2024-07-10T22:39:48.575Z" }, "references": [ { "tags": [ "vendor-advisory" ], "url": "https://supportportal.juniper.net/JSA83017" } ], "solutions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "The following software releases have been updated to resolve this specific issue: 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.3R3-S3-EVO, 22.4R3-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases." } ], "value": "The following software releases have been updated to resolve this specific issue: 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.3R3-S3-EVO, 22.4R3-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases." } ], "source": { "advisory": "JSA83017", "defect": [ "1756208" ], "discovery": "USER" }, "title": "Junos OS Evolved: MAC table changes cause a memory leak", "workarounds": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "There are no known workarounds for this issue." } ], "value": "There are no known workarounds for this issue." } ], "x_generator": { "engine": "Vulnogram 0.1.0-dev" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-07-12T20:01:39.694455Z", "id": "CVE-2024-39557", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-12T20:01:48.481Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:26:15.916Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://supportportal.juniper.net/JSA83017" } ] } ] } }