{"id":"CVE-2023-44191","state":"PUBLISHED","title":"Junos OS: QFX5000 Series and EX4000 Series: Denial of Service (DoS) on a large scale VLAN due to PFE hogging","description":"\nAn Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).\n\nOn all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.\n\nThis issue affects:\n\nJuniper Networks Junos OS on QFX5000 Series and EX4000 Series\n\n\n\n  *  21.1 versions prior to 21.1R3-S5;\n  *  21.2 versions prior to 21.2R3-S5;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S4;\n  *  22.1 versions prior to 22.1R3-S3;\n  *  22.2 versions prior to 22.2R3-S1;\n  *  22.3 versions prior to 22.3R2-S2, 22.3R3;\n  *  22.4 versions prior to 22.4R2.\n\n\n\n\nThis issue does not affect Juniper Networks Junos OS versions prior to 21.1R1\n\n\n\n","publishedAt":"2023-10-12T23:03:20.746Z","updatedAt":"2024-09-19T14:14:17.438Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"unaffected","lessThan":"21.1R1","versionType":"semver"},{"version":"21.1","status":"affected","lessThan":"21.1R3-S5","versionType":"semver"},{"version":"21.2","status":"affected","lessThan":"21.2R3-S5","versionType":"semver"},{"version":"21.3","status":"affected","lessThan":"21.3R3-S5","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S4","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S3","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S1","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R2-S2, 22.3R3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R2","versionType":"semver"}],"platforms":["QFX5000 Series","EX4000 Series"]}],"references":["https://supportportal.juniper.net/JSA73155"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:06:17.512Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/44xxx/CVE-2023-44191.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-44191","state":"PUBLISHED","datePublished":"2023-10-12T23:03:20.746Z","dateUpdated":"2024-09-19T14:14:17.438Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2023-09-26T19:30:27.953Z"},"containers":{"cna":{"title":"Junos OS: QFX5000 Series and EX4000 Series: Denial of Service (DoS) on a large scale VLAN due to PFE hogging","descriptions":[{"lang":"en","value":"\nAn Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).\n\nOn all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.\n\nThis issue affects:\n\nJuniper Networks Junos OS on QFX5000 Series and EX4000 Series\n\n\n\n  *  21.1 versions prior to 21.1R3-S5;\n  *  21.2 versions prior to 21.2R3-S5;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S4;\n  *  22.1 versions prior to 22.1R3-S3;\n  *  22.2 versions prior to 22.2R3-S1;\n  *  22.3 versions prior to 22.3R2-S2, 22.3R3;\n  *  22.4 versions prior to 22.4R2.\n\n\n\n\nThis issue does not affect Juniper Networks Junos OS versions prior to 21.1R1\n\n\n\n"}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"unaffected","lessThan":"21.1R1","versionType":"semver"},{"version":"21.1","status":"affected","lessThan":"21.1R3-S5","versionType":"semver"},{"version":"21.2","status":"affected","lessThan":"21.2R3-S5","versionType":"semver"},{"version":"21.3","status":"affected","lessThan":"21.3R3-S5","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S4","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S3","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S1","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R2-S2, 22.3R3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R2","versionType":"semver"}],"platforms":["QFX5000 Series","EX4000 Series"]}],"references":[{"url":"https://supportportal.juniper.net/JSA73155","tags":["vendor-advisory"]}],"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"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}]},{"descriptions":[{"description":"Denial of Service (DoS)","lang":"en"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2023-10-12T23:03:20.746Z"},"datePublic":"2023-10-11T16:00:00.000Z","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"}],"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 21.2R3-S5, 21.3R3-S5, 21.4R3-S4, 22.1R3-S3, 22.2R3-S1, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases.</p>"}],"value":"The following software releases have been updated to resolve this specific issue: Junos OS 21.2R3-S5, 21.3R3-S5, 21.4R3-S4, 22.1R3-S3, 22.2R3-S1, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases.\n\n"}],"source":{"advisory":"JSA73155","defect":["1711644"],"discovery":"USER"},"timeline":[{"lang":"en","time":"2023-10-11T16:00:00.000Z","value":"Initial Publication"}],"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":[{"title":"CVE Program Container","references":[{"url":"https://supportportal.juniper.net/JSA73155","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T19:59:51.578Z"}},{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"juniper_networks","product":"junos_os","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.1r1","versionType":"semver"},{"version":"21.1","status":"affected","lessThan":"21.1r3-s5","versionType":"semver"},{"version":"21.2","status":"affected","lessThan":"21.2r3-s5","versionType":"semver"},{"version":"21.3","status":"affected","lessThan":"21.3r3-s5","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4r3-s4","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"ss.1r3-s3","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2r3-s1","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3r2-s2","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4r2","versionType":"semver"}],"cpes":["cpe:2.3:o:juniper_networks:junos_os:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-19T14:10:10.810352Z","id":"CVE-2023-44191","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-19T14:14:17.438Z"}}]}}}