{"id":"CVE-2023-36843","state":"PUBLISHED","title":"Junos OS: SRX Series: The PFE will crash on receiving malformed SSL traffic when Sky ATP is enabled","description":"\nAn Improper Handling of Inconsistent Special Elements vulnerability in the Junos Services Framework (jsf) module of Juniper Networks Junos OS allows an unauthenticated network based attacker to cause a crash in the Packet Forwarding Engine (pfe) and thereby resulting in a Denial of Service (DoS).\n\nUpon receiving malformed SSL traffic, the PFE crashes. A manual restart will be needed to recover the device.\n\nThis issue only affects devices with Juniper Networks Advanced Threat Prevention (ATP) Cloud enabled with Encrypted Traffic Insights (configured via ‘security-metadata-streaming policy’).\n\nThis issue affects Juniper Networks Junos OS:\n\n\n\n  *  All versions prior to 20.4R3-S8, 20.4R3-S9;\n  *  21.1 version 21.1R1 and later versions;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S5;\n  *  22.1 versions prior to 22.1R3-S4;\n  *  22.2 versions prior to 22.2R3-S2;\n  *  22.3 versions prior to 22.3R2-S2, 22.3R3;\n  *  22.4 versions prior to 22.4R2-S1, 22.4R3;\n\n\n\n\n\n\n","publishedAt":"2023-10-12T22:58:49.192Z","updatedAt":"2024-09-18T17:53:30.073Z","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":"affected","lessThan":"20.4R3-S8","versionType":"semver"},{"version":"21.1R1","status":"affected","lessThan":"21.1*","versionType":"semver"},{"version":"21.2","status":"affected","lessThan":"21.2R3-S6","versionType":"semver"},{"version":"21.3","status":"affected","lessThan":"21.3R3-S5","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S5","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S4","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S2","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R2-S2, 22.3R3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R2-S1, 22.4R3","versionType":"semver"}],"platforms":["SRX Series"]}],"references":["https://supportportal.juniper.net/JSA73174"],"weaknesses":["CWE-168"],"ingestedAt":"2026-10-29T20:06:08.715Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/36xxx/CVE-2023-36843.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-36843","state":"PUBLISHED","datePublished":"2023-10-12T22:58:49.192Z","dateUpdated":"2024-09-18T17:53:30.073Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2023-06-27T16:17:25.276Z"},"containers":{"cna":{"title":"Junos OS: SRX Series: The PFE will crash on receiving malformed SSL traffic when Sky ATP is enabled","descriptions":[{"lang":"en","value":"\nAn Improper Handling of Inconsistent Special Elements vulnerability in the Junos Services Framework (jsf) module of Juniper Networks Junos OS allows an unauthenticated network based attacker to cause a crash in the Packet Forwarding Engine (pfe) and thereby resulting in a Denial of Service (DoS).\n\nUpon receiving malformed SSL traffic, the PFE crashes. A manual restart will be needed to recover the device.\n\nThis issue only affects devices with Juniper Networks Advanced Threat Prevention (ATP) Cloud enabled with Encrypted Traffic Insights (configured via ‘security-metadata-streaming policy’).\n\nThis issue affects Juniper Networks Junos OS:\n\n\n\n  *  All versions prior to 20.4R3-S8, 20.4R3-S9;\n  *  21.1 version 21.1R1 and later versions;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S5;\n  *  22.1 versions prior to 22.1R3-S4;\n  *  22.2 versions prior to 22.2R3-S2;\n  *  22.3 versions prior to 22.3R2-S2, 22.3R3;\n  *  22.4 versions prior to 22.4R2-S1, 22.4R3;\n\n\n\n\n\n\n"}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"20.4R3-S8","versionType":"semver"},{"version":"21.1R1","status":"affected","lessThan":"21.1*","versionType":"semver"},{"version":"21.2","status":"affected","lessThan":"21.2R3-S6","versionType":"semver"},{"version":"21.3","status":"affected","lessThan":"21.3R3-S5","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S5","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S4","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S2","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R2-S2, 22.3R3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R2-S1, 22.4R3","versionType":"semver"}],"platforms":["SRX Series"]}],"references":[{"url":"https://supportportal.juniper.net/JSA73174","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-168","description":" CWE-168: Improper Handling of Inconsistent Special Elements","lang":"en","type":"CWE"}]},{"descriptions":[{"description":"Denial of Service (DoS)","lang":"en"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2023-10-12T22:58:49.192Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>The below command configures security-metadata-streaming:</p><tt>[ set services security-metadata-streaming policy ]</tt>"}],"value":"The below command configures security-metadata-streaming:\n\n[ set services security-metadata-streaming policy ]"}],"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 20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S2, 22.3R2-S2, 22.3R3, 22.4R2-S1, 22.4R3, 23.1R2, 23.2R1, and all subsequent releases.</p>"}],"value":"The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S8, 21.2R3-S6, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S2, 22.3R2-S2, 22.3R3, 22.4R2-S1, 22.4R3, 23.1R2, 23.2R1, and all subsequent releases.\n\n"}],"source":{"advisory":"JSA73174","defect":["1696110"],"discovery":"INTERNAL"},"timeline":[{"lang":"en","time":"2023-10-11T16:00:00.000Z","value":"Initial Publication"}],"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Removing the security-metadata-streaming policy from the configuration stops the issue.</p>"}],"value":"Removing the security-metadata-streaming policy from the configuration stops the issue.\n\n"}],"x_generator":{"engine":"Vulnogram 0.1.0-av217"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://supportportal.juniper.net/JSA73174","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T17:01:09.673Z"}},{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"juniper_networks","product":"junos_os","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"20.4r3-s8","versionType":"semver"},{"version":"21.1r1","status":"affected","lessThan":"21.1","versionType":"semver"},{"version":"21.2","status":"affected","lessThan":"21.2r3-s6","versionType":"semver"},{"version":"21.3","status":"affected","lessThan":"21.3r3-s5","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4r3-s5","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1r3-s2","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2r3-s2","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3r2-s2","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3r3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4r2-s2","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4r3","versionType":"semver"}],"cpes":["cpe:2.3:o:juniper_networks:junos_os:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-18T17:43:08.375533Z","id":"CVE-2023-36843","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-168","type":"CWE","lang":"en","description":"CWE-168 Improper Handling of Inconsistent Special Elements"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-18T17:53:30.073Z"}}]}}}