{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2024-39555", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2024-06-25T15:12:53.247Z", "datePublished": "2024-07-10T22:36:48.706Z", "dateUpdated": "2024-08-02T04:26:15.946Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Junos OS", "vendor": "Juniper Networks", "versions": [ { "lessThan": "21.4R3-S8", "status": "affected", "version": "0", "versionType": "semver" }, { "lessThan": "22.2R3-S4", "status": "affected", "version": "22.2", "versionType": "semver" }, { "lessThan": "22.3R3-S3", "status": "affected", "version": "22.3", "versionType": "semver" }, { "lessThan": "22.4R3-S3", "status": "affected", "version": "22.4", "versionType": "semver" }, { "lessThan": "23.2R2-S1", "status": "affected", "version": "23.2", "versionType": "semver" }, { "lessThan": "23.4R1-S2, 23.4R2", "status": "affected", "version": "23.4", "versionType": "semver" } ] }, { "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-S3-EVO", "status": "affected", "version": "22.4-EVO", "versionType": "semver" }, { "lessThan": "23.2R2-S1-EVO", "status": "affected", "version": "23.2-EVO", "versionType": "semver" }, { "lessThan": "23.4R1-S2-EVO, 23.4R2-EVO", "status": "affected", "version": "23.4-EVO", "versionType": "semver" } ] } ], "configurations": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "A sample BGP segment routing configuration is shown below:

[ protocols bgp group <name> family inet segment-routing-te ] (IPv4)
\n\n[ protocols bgp group <name> family inet6 segment-routing-te ] (IPv6)
" } ], "value": "A sample BGP segment routing configuration is shown below:\n\n[ protocols bgp group family inet segment-routing-te ] (IPv4)\n\n\n[ protocols bgp group family inet6 segment-routing-te ] (IPv6)" } ], "datePublic": "2024-07-10T16:00:00.000Z", "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker sending a specific malformed BGP update message to cause the session to reset, resulting in a Denial of Service (DoS). Continued receipt and processing of these malformed BGP update messages will create a sustained Denial of Service (DoS) condition.

Upon receipt of a BGP update message over an established BGP session containing a specifically malformed tunnel encapsulation attribute, when segment routing is enabled, internal processing of the malformed attributes within the update results in improper parsing of remaining attributes, leading to session reset:

BGP SEND Notification code 3 (Update Message Error) subcode 1 (invalid attribute list)

Only systems with segment routing enabled are vulnerable to this issue.

This issue affects eBGP and iBGP, in both IPv4 and IPv6 implementations, and requires a remote attacker to have at least one established BGP session.

This issue affects:

Junos OS:

Junos OS Evolved: 

" } ], "value": "An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker sending a specific malformed BGP update message to cause the session to reset, resulting in a Denial of Service (DoS). Continued receipt and processing of these malformed BGP update messages will create a sustained Denial of Service (DoS) condition.\n\nUpon receipt of a BGP update message over an established BGP session containing a specifically malformed tunnel encapsulation attribute, when segment routing is enabled, internal processing of the malformed attributes within the update results in improper parsing of remaining attributes, leading to session reset:\n\nBGP SEND Notification code 3 (Update Message Error) subcode 1 (invalid attribute list)\n\nOnly systems with segment routing enabled are vulnerable to this issue.\n\nThis issue affects eBGP and iBGP, in both IPv4 and IPv6 implementations, and requires a remote attacker to have at least one established BGP session.\n\nThis issue affects:\n\nJunos OS: \n\n\n * All versions before 21.4R3-S8, \n * from 22.2 before 22.2R3-S4, \n * from 22.3 before 22.3R3-S3, \n * from 22.4 before 22.4R3-S3, \n * from 23.2 before 23.2R2-S1, \n * from 23.4 before 23.4R1-S2, 23.4R2.\n\n\nJunos OS Evolved: \n\n * All versions before 21.4R3-S8-EVO, \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-S3-EVO, \n * from 23.2-EVO before 23.2R2-S1-EVO, \n * from 23.4-EVO before 23.4R1-S2-EVO, 23.4R2-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": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/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": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/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-755", "description": "CWE-755 Improper Handling of Exceptional Conditions", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2024-07-10T22:37:53.351Z" }, "references": [ { "tags": [ "vendor-advisory" ], "url": "https://supportportal.juniper.net/JSA83015" } ], "solutions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "The following software releases have been updated to resolve this specific issue:
\n
Junos OS: 21.4R3-S8, 22.2R3-S4, 22.3R3-S3, 22.4R3-S3, 23.2R2-S1, 23.4R1-S2, 23.4R2, 24.2R1, and all subsequent releases.
Junos OS Evolved: 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.3R3-S3-EVO, 22.4R3-S3-EVO, 23.2R2-S1-EVO, 23.4R1-S2-EVO, 23.4R2-EVO, 24.2R1-EVO, and all subsequent releases.
\n\n\n\n
" } ], "value": "The following software releases have been updated to resolve this specific issue:\n \n\nJunos OS: 21.4R3-S8, 22.2R3-S4, 22.3R3-S3, 22.4R3-S3, 23.2R2-S1, 23.4R1-S2, 23.4R2, 24.2R1, and all subsequent releases.\nJunos OS Evolved: 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.3R3-S3-EVO, 22.4R3-S3-EVO, 23.2R2-S1-EVO, 23.4R1-S2-EVO, 23.4R2-EVO, 24.2R1-EVO, and all subsequent releases." } ], "source": { "advisory": "JSA83015", "defect": [ "1787290" ], "discovery": "INTERNAL" }, "title": "Junos OS and Junos OS Evolved: Receipt of a specific malformed BGP update causes the session to reset", "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": [ { "affected": [ { "vendor": "juniper", "product": "junos_os", "cpes": [ "cpe:2.3:o:juniper:junos_os:*:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "0", "status": "affected", "lessThan": "21.4R3-S8", "versionType": "semver" }, { "version": "22.2", "status": "affected", "lessThan": "22.2R3-S4", "versionType": "semver" }, { "version": "22.3", "status": "affected", "lessThan": "22.3R3-S3", "versionType": "semver" }, { "version": "22.4", "status": "affected", "lessThan": "22.4R3-S3", "versionType": "semver" }, { "version": "23.2", "status": "affected", "lessThan": "23.2R2-S1", "versionType": "semver" }, { "version": "23.4", "status": "affected", "lessThan": "23.4R1-S2", "versionType": "semver" }, { "version": "23.4", "status": "affected", "lessThan": "23.4R2", "versionType": "semver" } ] }, { "vendor": "juniper", "product": "junos_os_evolved", "cpes": [ "cpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "0", "status": "affected", "lessThan": "21.4R3-S8-EVO", "versionType": "semver" }, { "version": "22.2-EVO", "status": "affected", "lessThan": "22.2R3-S4-EVO", "versionType": "semver" }, { "version": "22.3-EVO", "status": "affected", "lessThan": "22.3R3-S3-EVO", "versionType": "semver" }, { "version": "22.4-EVO", "status": "affected", "lessThan": "22.4R3-S3-EVO", "versionType": "semver" }, { "version": "23.2-EVO", "status": "affected", "lessThan": "23.2R2-S1-EVO", "versionType": "semver" }, { "version": "23.4-EVO", "status": "affected", "lessThan": "23.4R1-S2-EVO", "versionType": "semver" }, { "version": "23.4-EVO", "status": "affected", "lessThan": "23.4R2-EVO", "versionType": "semver" } ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-07-11T14:13:23.572231Z", "id": "CVE-2024-39555", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "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": "2024-07-12T16:41:46.291Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:26:15.946Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://supportportal.juniper.net/JSA83015" } ] } ] } }