{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-44203","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","state":"PUBLISHED","assignerShortName":"juniper","dateReserved":"2023-09-26T19:30:32.350Z","datePublished":"2023-10-12T23:06:21.471Z","dateUpdated":"2024-09-17T16:09:42.727Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["QFX5000 Series","EX2300","EX3400","EX4100","EX4400","EX4600"],"product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"20.4R3-S5","status":"affected","version":"0","versionType":"semver"},{"lessThan":"21.1R3-S4","status":"affected","version":"21.1","versionType":"semver"},{"lessThan":"21.2R3-S3","status":"affected","version":"21.2","versionType":"semver"},{"lessThan":"21.3R3-S5","status":"affected","version":"21.3","versionType":"semver"},{"lessThan":"21.4R3-S2","status":"affected","version":"21.4","versionType":"semver"},{"lessThan":"22.1R3","status":"affected","version":"22.1","versionType":"semver"},{"lessThan":"22.2R3","status":"affected","version":"22.2","versionType":"semver"},{"lessThan":"22.3R2","status":"affected","version":"22.3","versionType":"semver"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Isolated PVLAN's can be configured with the following command:</p> <tt>[ set vlans private-vlan isolated ]</tt>"}],"value":"Isolated PVLAN's can be configured with the following command:\n\n [ set vlans private-vlan isolated ]"}],"datePublic":"2023-10-11T16:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"\n\n<p>An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600 allows a adjacent attacker to send specific traffic, which leads to packet flooding, resulting in a Denial of Service (DoS).</p><p>When a specific IGMP packet is received in an isolated VLAN, it is duplicated to all other ports under the primary VLAN, which causes a flood.</p><p>This issue affects QFX5000 series, EX2300, EX3400, EX4100, EX4400 and EX4600 platforms only.</p><p>This issue affects Juniper Junos OS on on QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600:</p><p></p><ul><li>All versions prior to 20.4R3-S5;</li><li>21.1 versions prior to 21.1R3-S4;</li><li>21.2 versions prior to 21.2R3-S3;</li><li>21.3 versions prior to 21.3R3-S5;</li><li>21.4 versions prior to 21.4R3-S2;</li><li>22.1 versions prior to 22.1R3;</li><li>22.2 versions prior to 22.2R3;</li><li>22.3 versions prior to 22.3R2.</li></ul><p></p>\n\n"}],"value":"\nAn Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600 allows a adjacent attacker to send specific traffic, which leads to packet flooding, resulting in a Denial of Service (DoS).\n\nWhen a specific IGMP packet is received in an isolated VLAN, it is duplicated to all other ports under the primary VLAN, which causes a flood.\n\nThis issue affects QFX5000 series, EX2300, EX3400, EX4100, EX4400 and EX4600 platforms only.\n\nThis issue affects Juniper Junos OS on on QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600:\n\n\n\n  *  All versions prior to 20.4R3-S5;\n  *  21.1 versions prior to 21.1R3-S4;\n  *  21.2 versions prior to 21.2R3-S3;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S2;\n  *  22.1 versions prior to 22.1R3;\n  *  22.2 versions prior to 22.2R3;\n  *  22.3 versions prior to 22.3R2.\n\n\n\n\n\n\n"}],"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.\n\n"}],"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"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-703","description":"CWE-703: Improper Check or Handling of Exceptional Conditions","lang":"en","type":"CWE"}]},{"descriptions":[{"description":"Denial of Service (DoS)","lang":"en"}]}],"providerMetadata":{"orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper","dateUpdated":"2023-10-12T23:06:21.471Z"},"references":[{"tags":["vendor-advisory"],"url":"https://supportportal.juniper.net/JSA73169"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S5, 21.4R3-S2, 22.1R3, 22.2R3, 22.3R2, 22.4R1, and all subsequent releases.</p>"}],"value":"The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S5, 21.4R3-S2, 22.1R3, 22.2R3, 22.3R2, 22.4R1, and all subsequent releases.\n\n"}],"source":{"advisory":"JSA73169","defect":["1667069"],"discovery":"INTERNAL"},"timeline":[{"lang":"en","time":"2023-10-11T16:00:00.000Z","value":"Initial Publication"}],"title":"Junos OS: QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600: Packet flooding will occur when IGMP traffic is sent to an isolated VLAN","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>There are no known workarounds for this issue.</p>"}],"value":"There are no known workarounds for this issue.\n\n"}],"x_generator":{"engine":"Vulnogram 0.1.0-av217"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T19:59:51.867Z"},"title":"CVE Program Container","references":[{"tags":["vendor-advisory","x_transferred"],"url":"https://supportportal.juniper.net/JSA73169"}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-17T15:45:38.633995Z","id":"CVE-2023-44203","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":"2024-09-17T16:09:42.727Z"}}]}}