{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-21595", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2024-12-26T14:47:11.669Z", "datePublished": "2025-04-09T19:50:28.091Z", "dateUpdated": "2025-04-10T13:13:22.128Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "21.2R3-S7", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "21.4R3-S4", "status": "affected", "version": "21.4", "versionType": "semver"}, {"lessThan": "22.2R3-S1", "status": "affected", "version": "22.2", "versionType": "semver"}, {"lessThan": "22.3R3-S1", "status": "affected", "version": "22.3", "versionType": "semver"}, {"lessThan": "22.4R2-S2, 22.4R3", "status": "affected", "version": "22.4", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [{"lessThan": "21.2R3-S7-EVO", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "21.4R3-S4-EVO", "status": "affected", "version": "21.4-EVO", "versionType": "semver"}, {"lessThan": "22.2R3-S1-EVO", "status": "affected", "version": "22.2-EVO", "versionType": "semver"}, {"lessThan": "22.3R3-S1-EVO", "status": "affected", "version": "22.3-EVO", "versionType": "semver"}, {"lessThan": "22.4R3-EVO", "status": "affected", "version": "22.4-EVO", "versionType": "semver"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "To be exposed to this issue the device must be configured for EVPN-VXLAN. Refer to product documentation for how to configure EVPN-VXLAN as there are different configuration options."}], "value": "To be exposed to this issue the device must be configured for EVPN-VXLAN. Refer to product documentation for how to configure EVPN-VXLAN as there are different configuration options."}], "datePublic": "2025-04-09T16:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "A Missing Release of Memory after Effective Lifetime&nbsp;vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause an FPC to crash, leading to Denial of Service (DoS).<br><br>On all Junos OS and Junos OS Evolved platforms, in an EVPN-VXLAN scenario, when specific ARP packets are received on an IPv4 network, or specific NDP packets are received on an IPv6 network, kernel heap memory leaks, which eventually leads to an FPC crash and restart.<br><br>This issue does not affect MX Series platforms.<br><p>Heap size growth on FPC can be seen using below command.<br></p><tt>user@host&gt; show chassis fpc<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Temp CPU Utilization (%) CPU Utilization (%) Memory &nbsp; Utilization (%)<br>Slot State &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (C) Total Interrupt &nbsp; &nbsp; 1min &nbsp; 5min &nbsp; 15min &nbsp; DRAM (MB) &nbsp; Heap &nbsp; Buffer<br>&nbsp; 0 Online &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 45 &nbsp; &nbsp; 3 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 2 &nbsp; &nbsp; &nbsp; 2 &nbsp; &nbsp; &nbsp;2 &nbsp; &nbsp; &nbsp; 32768 &nbsp; &nbsp; &nbsp;<span style=\"background-color: rgb(229, 241, 143);\">19</span>&nbsp; &nbsp; &nbsp; &nbsp;0\u2003&lt;&lt;&lt;&lt;&lt;&lt;&lt; Heap increase in all fPCs</tt><p><br></p><p>This issue affects Junos OS:</p><ul><li>All versions before 21.2R3-S7,</li><li>21.4 versions before 21.4R3-S4,</li><li>22.2 versions before 22.2R3-S1,&nbsp;</li><li>22.3 versions before 22.3R3-S1,&nbsp;</li><li>22.4 versions before 22.4R2-S2, 22.4R3.</li></ul><p>and Junos OS Evolved:</p><ul><li>All versions before 21.2R3-S7-EVO,</li><li>21.4-EVO versions before 21.4R3-S4-EVO,</li><li>22.2-EVO versions before 22.2R3-S1-EVO,&nbsp;</li><li>22.3-EVO versions before 22.3R3-S1-EVO,&nbsp;<br></li><li>22.4-EVO versions before 22.4R3-EVO.<br></li></ul>"}], "value": "A Missing Release of Memory after Effective Lifetime\u00a0vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause an FPC to crash, leading to Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved platforms, in an EVPN-VXLAN scenario, when specific ARP packets are received on an IPv4 network, or specific NDP packets are received on an IPv6 network, kernel heap memory leaks, which eventually leads to an FPC crash and restart.\n\nThis issue does not affect MX Series platforms.\nHeap size growth on FPC can be seen using below command.\n\n\nuser@host> show chassis fpc\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Temp CPU Utilization (%) CPU Utilization (%) Memory \u00a0 Utilization (%)\nSlot State \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (C) Total Interrupt \u00a0 \u00a0 1min \u00a0 5min \u00a0 15min \u00a0 DRAM (MB) \u00a0 Heap \u00a0 Buffer\n\u00a0 0 Online \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 45 \u00a0 \u00a0 3 \u00a0 \u00a0 \u00a0 \u00a0 0 \u00a0 \u00a0 \u00a0 2 \u00a0 \u00a0 \u00a0 2 \u00a0 \u00a0 \u00a02 \u00a0 \u00a0 \u00a0 32768 \u00a0 \u00a0 \u00a019\u00a0 \u00a0 \u00a0 \u00a00\u2003<<<<<<< Heap increase in all fPCs\n\n\nThis issue affects Junos OS:\n\n * All versions before 21.2R3-S7,\n * 21.4 versions before 21.4R3-S4,\n * 22.2 versions before 22.2R3-S1,\u00a0\n * 22.3 versions before 22.3R3-S1,\u00a0\n * 22.4 versions before 22.4R2-S2, 22.4R3.\n\n\nand Junos OS Evolved:\n\n * All versions before 21.2R3-S7-EVO,\n * 21.4-EVO versions before 21.4R3-S4-EVO,\n * 22.2-EVO versions before 22.2R3-S1-EVO,\u00a0\n * 22.3-EVO versions before 22.3R3-S1-EVO,\u00a0\n\n * 22.4-EVO versions before 22.4R3-EVO."}], "exploits": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Juniper SIRT is not aware of any malicious exploitation of this vulnerability.</p>"}], "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": "NOT_DEFINED", "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-401", "description": "CWE-401 Missing Release of Memory after Effective Lifetime", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2025-04-09T19:50:28.091Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://supportportal.juniper.net/JSA96450"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The following software releases have been updated to resolve this specific issue.</p><p>Junos OS: 21.2R3-S7, 21.4R3-S4, 22.2R3-S1, 22.3R3-S1, 22.4R2-S2, 22.4R3, 23.2R1, and all subsequent releases.</p><p>Junos OS Evolved: 21.2R3-S7-EVO, 21.4R3-S4-EVO, 22.2R3-S1-EVO, 22.3R3-S1-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.</p>"}], "value": "The following software releases have been updated to resolve this specific issue.\n\nJunos OS: 21.2R3-S7, 21.4R3-S4, 22.2R3-S1, 22.3R3-S1, 22.4R2-S2, 22.4R3, 23.2R1, and all subsequent releases.\n\nJunos OS Evolved: 21.2R3-S7-EVO, 21.4R3-S4-EVO, 22.2R3-S1-EVO, 22.3R3-S1-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases."}], "source": {"advisory": "JSA96450", "defect": ["1731460"], "discovery": "INTERNAL"}, "timeline": [{"lang": "en", "time": "2025-04-09T16:00:00.000Z", "value": "Initial Publication"}], "title": "Junos OS and Junos OS Evolved: In an EVPN-VXLAN scenario specific ARP or NDP packets cause FPC to crash", "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-av217"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-10T13:13:13.960516Z", "id": "CVE-2025-21595", "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": "2025-04-10T13:13:22.128Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-21595", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-10T13:13:13.960516Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-10T13:13:17.986Z"}}], "cna": {"title": "Junos OS and Junos OS Evolved: In an EVPN-VXLAN scenario specific ARP or NDP packets cause FPC to crash", "source": {"defect": ["1731460"], "advisory": "JSA96450", "discovery": "INTERNAL"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "ADJACENT", "baseSeverity": "HIGH", "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", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "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-S7", "versionType": "semver"}, {"status": "affected", "version": "21.4", "lessThan": "21.4R3-S4", "versionType": "semver"}, {"status": "affected", "version": "22.2", "lessThan": "22.2R3-S1", "versionType": "semver"}, {"status": "affected", "version": "22.3", "lessThan": "22.3R3-S1", "versionType": "semver"}, {"status": "affected", "version": "22.4", "lessThan": "22.4R2-S2, 22.4R3", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Juniper Networks", "product": "Junos OS Evolved", "versions": [{"status": "affected", "version": "0", "lessThan": "21.2R3-S7-EVO", "versionType": "semver"}, {"status": "affected", "version": "21.4-EVO", "lessThan": "21.4R3-S4-EVO", "versionType": "semver"}, {"status": "affected", "version": "22.2-EVO", "lessThan": "22.2R3-S1-EVO", "versionType": "semver"}, {"status": "affected", "version": "22.3-EVO", "lessThan": "22.3R3-S1-EVO", "versionType": "semver"}, {"status": "affected", "version": "22.4-EVO", "lessThan": "22.4R3-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": "<p>Juniper SIRT is not aware of any malicious exploitation of this vulnerability.</p>", "base64": false}]}], "timeline": [{"lang": "en", "time": "2025-04-09T16:00:00.000Z", "value": "Initial Publication"}], "solutions": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue.\n\nJunos OS: 21.2R3-S7, 21.4R3-S4, 22.2R3-S1, 22.3R3-S1, 22.4R2-S2, 22.4R3, 23.2R1, and all subsequent releases.\n\nJunos OS Evolved: 21.2R3-S7-EVO, 21.4R3-S4-EVO, 22.2R3-S1-EVO, 22.3R3-S1-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.", "supportingMedia": [{"type": "text/html", "value": "<p>The following software releases have been updated to resolve this specific issue.</p><p>Junos OS: 21.2R3-S7, 21.4R3-S4, 22.2R3-S1, 22.3R3-S1, 22.4R2-S2, 22.4R3, 23.2R1, and all subsequent releases.</p><p>Junos OS Evolved: 21.2R3-S7-EVO, 21.4R3-S4-EVO, 22.2R3-S1-EVO, 22.3R3-S1-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.</p>", "base64": false}]}], "datePublic": "2025-04-09T16:00:00.000Z", "references": [{"url": "https://supportportal.juniper.net/JSA96450", "tags": ["vendor-advisory"]}], "workarounds": [{"lang": "en", "value": "There are no known workarounds for this issue.", "supportingMedia": [{"type": "text/html", "value": "There are no known workarounds for this issue.", "base64": false}]}], "x_generator": {"engine": "Vulnogram 0.1.0-av217"}, "descriptions": [{"lang": "en", "value": "A Missing Release of Memory after Effective Lifetime\u00a0vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause an FPC to crash, leading to Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved platforms, in an EVPN-VXLAN scenario, when specific ARP packets are received on an IPv4 network, or specific NDP packets are received on an IPv6 network, kernel heap memory leaks, which eventually leads to an FPC crash and restart.\n\nThis issue does not affect MX Series platforms.\nHeap size growth on FPC can be seen using below command.\n\n\nuser@host> show chassis fpc\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Temp CPU Utilization (%) CPU Utilization (%) Memory \u00a0 Utilization (%)\nSlot State \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (C) Total Interrupt \u00a0 \u00a0 1min \u00a0 5min \u00a0 15min \u00a0 DRAM (MB) \u00a0 Heap \u00a0 Buffer\n\u00a0 0 Online \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 45 \u00a0 \u00a0 3 \u00a0 \u00a0 \u00a0 \u00a0 0 \u00a0 \u00a0 \u00a0 2 \u00a0 \u00a0 \u00a0 2 \u00a0 \u00a0 \u00a02 \u00a0 \u00a0 \u00a0 32768 \u00a0 \u00a0 \u00a019\u00a0 \u00a0 \u00a0 \u00a00\u2003<<<<<<< Heap increase in all fPCs\n\n\nThis issue affects Junos OS:\n\n * All versions before 21.2R3-S7,\n * 21.4 versions before 21.4R3-S4,\n * 22.2 versions before 22.2R3-S1,\u00a0\n * 22.3 versions before 22.3R3-S1,\u00a0\n * 22.4 versions before 22.4R2-S2, 22.4R3.\n\n\nand Junos OS Evolved:\n\n * All versions before 21.2R3-S7-EVO,\n * 21.4-EVO versions before 21.4R3-S4-EVO,\n * 22.2-EVO versions before 22.2R3-S1-EVO,\u00a0\n * 22.3-EVO versions before 22.3R3-S1-EVO,\u00a0\n\n * 22.4-EVO versions before 22.4R3-EVO.", "supportingMedia": [{"type": "text/html", "value": "A Missing Release of Memory after Effective Lifetime&nbsp;vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause an FPC to crash, leading to Denial of Service (DoS).<br><br>On all Junos OS and Junos OS Evolved platforms, in an EVPN-VXLAN scenario, when specific ARP packets are received on an IPv4 network, or specific NDP packets are received on an IPv6 network, kernel heap memory leaks, which eventually leads to an FPC crash and restart.<br><br>This issue does not affect MX Series platforms.<br><p>Heap size growth on FPC can be seen using below command.<br></p><tt>user@host&gt; show chassis fpc<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Temp CPU Utilization (%) CPU Utilization (%) Memory &nbsp; Utilization (%)<br>Slot State &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (C) Total Interrupt &nbsp; &nbsp; 1min &nbsp; 5min &nbsp; 15min &nbsp; DRAM (MB) &nbsp; Heap &nbsp; Buffer<br>&nbsp; 0 Online &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 45 &nbsp; &nbsp; 3 &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 2 &nbsp; &nbsp; &nbsp; 2 &nbsp; &nbsp; &nbsp;2 &nbsp; &nbsp; &nbsp; 32768 &nbsp; &nbsp; &nbsp;<span style=\"background-color: rgb(229, 241, 143);\">19</span>&nbsp; &nbsp; &nbsp; &nbsp;0\u2003&lt;&lt;&lt;&lt;&lt;&lt;&lt; Heap increase in all fPCs</tt><p><br></p><p>This issue affects Junos OS:</p><ul><li>All versions before 21.2R3-S7,</li><li>21.4 versions before 21.4R3-S4,</li><li>22.2 versions before 22.2R3-S1,&nbsp;</li><li>22.3 versions before 22.3R3-S1,&nbsp;</li><li>22.4 versions before 22.4R2-S2, 22.4R3.</li></ul><p>and Junos OS Evolved:</p><ul><li>All versions before 21.2R3-S7-EVO,</li><li>21.4-EVO versions before 21.4R3-S4-EVO,</li><li>22.2-EVO versions before 22.2R3-S1-EVO,&nbsp;</li><li>22.3-EVO versions before 22.3R3-S1-EVO,&nbsp;<br></li><li>22.4-EVO versions before 22.4R3-EVO.<br></li></ul>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-401", "description": "CWE-401 Missing Release of Memory after Effective Lifetime"}]}], "configurations": [{"lang": "en", "value": "To be exposed to this issue the device must be configured for EVPN-VXLAN. Refer to product documentation for how to configure EVPN-VXLAN as there are different configuration options.", "supportingMedia": [{"type": "text/html", "value": "To be exposed to this issue the device must be configured for EVPN-VXLAN. Refer to product documentation for how to configure EVPN-VXLAN as there are different configuration options.", "base64": false}]}], "providerMetadata": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2025-04-09T19:50:28.091Z"}}}, "cveMetadata": {"cveId": "CVE-2025-21595", "state": "PUBLISHED", "dateUpdated": "2025-04-10T13:13:22.128Z", "dateReserved": "2024-12-26T14:47:11.669Z", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "datePublished": "2025-04-09T19:50:28.091Z", "assignerShortName": "juniper"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A Missing Release of Memory after Effective Lifetime\u00a0vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause an FPC to crash, leading to Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved platforms, in an EVPN-VXLAN scenario, when specific ARP packets are received on an IPv4 network, or specific NDP packets are received on an IPv6 network, kernel heap memory leaks, which eventually leads to an FPC crash and restart.\n\nThis issue does not affect MX Series platforms.\nHeap size growth on FPC can be seen using below command.\n\n\nuser@host> show chassis fpc\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Temp CPU Utilization (%) CPU Utilization (%) Memory \u00a0 Utilization (%)\nSlot State \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (C) Total Interrupt \u00a0 \u00a0 1min \u00a0 5min \u00a0 15min \u00a0 DRAM (MB) \u00a0 Heap \u00a0 Buffer\n\u00a0 0 Online \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 45 \u00a0 \u00a0 3 \u00a0 \u00a0 \u00a0 \u00a0 0 \u00a0 \u00a0 \u00a0 2 \u00a0 \u00a0 \u00a0 2 \u00a0 \u00a0 \u00a02 \u00a0 \u00a0 \u00a0 32768 \u00a0 \u00a0 \u00a019\u00a0 \u00a0 \u00a0 \u00a00\u2003<<<<<<< Heap increase in all fPCs\n\n\nThis issue affects Junos OS:\n\n * All versions before 21.2R3-S7,\n * 21.4 versions before 21.4R3-S4,\n * 22.2 versions before 22.2R3-S1,\u00a0\n * 22.3 versions before 22.3R3-S1,\u00a0\n * 22.4 versions before 22.4R2-S2, 22.4R3.\n\n\nand Junos OS Evolved:\n\n * All versions before 21.2R3-S7-EVO,\n * 21.4-EVO versions before 21.4R3-S4-EVO,\n * 22.2-EVO versions before 22.2R3-S1-EVO,\u00a0\n * 22.3-EVO versions before 22.3R3-S1-EVO,\u00a0\n\n * 22.4-EVO versions before 22.4R3-EVO."}, {"lang": "es", "value": "Una vulnerabilidad de falta de liberaci\u00f3n de memoria tras el tiempo de vida \u00fatil efectivo en el motor de reenv\u00edo de paquetes (PFE) de Juniper Networks Junos OS y Junos OS Evolved permite que un atacante adyacente no autenticado provoque el bloqueo de un FPC, lo que provoca una denegaci\u00f3n de servicio (DoS). En todas las plataformas Junos OS y Junos OS Evolved, en un escenario EVPN-VXLAN, al recibir paquetes ARP espec\u00edficos en una red IPv4 o paquetes NDP espec\u00edficos en una red IPv6, se producen fugas de memoria en el mont\u00f3n del kernel, lo que finalmente provoca el bloqueo y reinicio del FPC. Este problema no afecta a las plataformas de la serie MX. El crecimiento del tama\u00f1o del mont\u00f3n en FPC se puede observar con el siguiente comando. user@host&gt; show chassis fpc Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%) Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer 0 Online 45 3 0 2 2 2 32768 19 0?&lt;&lt;&lt;&lt;&lt;&lt;&lt; Heap increase in all fPCs Este problema afecta a Junos OS: * Todas las versiones anteriores a 21.2R3-S7, * Versiones 21.4 anteriores a 21.4R3-S4, * Versiones 22.2 anteriores a 22.2R3-S1, * Versiones 22.3 anteriores a 22.3R3-S1, * Versiones 22.4 anteriores a 22.4R2-S2, 22.4R3. y Junos OS Evolved: * Todas las versiones anteriores a 21.2R3-S7-EVO, * Versiones 21.4-EVO anteriores a 21.4R3-S4-EVO, * Versiones 22.2-EVO anteriores a 22.2R3-S1-EVO, * Versiones 22.3-EVO anteriores a 22.3R3-S1-EVO, * Versiones 22.4-EVO anteriores a 22.4R3-EVO."}], "id": "CVE-2025-21595", "lastModified": "2025-04-11T15:40:10.277", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "sirt@juniper.net", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2025-04-09T20:15:25.853", "references": [{"source": "sirt@juniper.net", "url": "https://supportportal.juniper.net/JSA96450"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "sirt@juniper.net", "type": "Primary"}]}

{}