{"id":"CVE-2023-36831","state":"PUBLISHED","title":"Junos OS: SRX Series: jbuf memory leak when SSL Proxy and UTM Web-Filtering is applied","description":"An Improper Check or Handling of Exceptional Conditions vulnerability in the UTM (Unified Threat Management) Web-Filtering feature of Juniper Networks Junos OS on SRX Series causes a jbuf memory leak to occur when accessing certain websites, eventually leading to a Denial of Service (DoS) condition.  Service restoration is only possible by rebooting the system.\n\nThe jbuf memory leak only occurs in SSL Proxy and UTM Web-Filtering configurations.  Other products, platforms, and configurations are not affected by this vulnerability.\n\nThis issue affects Juniper Networks Junos OS on SRX Series:\n22.2 versions prior to 22.2R3;\n22.3 versions prior to 22.3R2-S1, 22.3R3;\n22.4 versions prior to 22.4R1-S2, 22.4R2.\n\nThis issue does not affect Juniper Networks Junos OS versions prior to 22.2R2.\n","publishedAt":"2023-07-14T14:56:32.306Z","updatedAt":"2024-11-07T14:41:49.644Z","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":"22.2","status":"affected","lessThan":"22.2R3","versionType":"custom"},{"version":"22.3","status":"affected","lessThan":"22.3R2-S1, 22.3R3","versionType":"custom"},{"version":"22.4","status":"affected","lessThan":"22.4R1-S2, 22.4R2","versionType":"custom"},{"version":"unspecified","status":"unaffected","lessThan":"22.2R2","versionType":"custom"}],"platforms":["SRX Series"]}],"references":["https://supportportal.juniper.net/JSA71636"],"weaknesses":["CWE-703"],"ingestedAt":"2026-10-29T20:06:08.715Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/36xxx/CVE-2023-36831.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-36831","state":"PUBLISHED","datePublished":"2023-07-14T14:56:32.306Z","dateUpdated":"2024-11-07T14:41:49.644Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2023-06-27T16:17:25.275Z"},"containers":{"cna":{"title":"Junos OS: SRX Series: jbuf memory leak when SSL Proxy and UTM Web-Filtering is applied","descriptions":[{"lang":"en","value":"An Improper Check or Handling of Exceptional Conditions vulnerability in the UTM (Unified Threat Management) Web-Filtering feature of Juniper Networks Junos OS on SRX Series causes a jbuf memory leak to occur when accessing certain websites, eventually leading to a Denial of Service (DoS) condition.  Service restoration is only possible by rebooting the system.\n\nThe jbuf memory leak only occurs in SSL Proxy and UTM Web-Filtering configurations.  Other products, platforms, and configurations are not affected by this vulnerability.\n\nThis issue affects Juniper Networks Junos OS on SRX Series:\n22.2 versions prior to 22.2R3;\n22.3 versions prior to 22.3R2-S1, 22.3R3;\n22.4 versions prior to 22.4R1-S2, 22.4R2.\n\nThis issue does not affect Juniper Networks Junos OS versions prior to 22.2R2.\n"}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"22.2","status":"affected","lessThan":"22.2R3","versionType":"custom"},{"version":"22.3","status":"affected","lessThan":"22.3R2-S1, 22.3R3","versionType":"custom"},{"version":"22.4","status":"affected","lessThan":"22.4R1-S2, 22.4R2","versionType":"custom"},{"version":"unspecified","status":"unaffected","lessThan":"22.2R2","versionType":"custom"}],"platforms":["SRX Series"]}],"references":[{"url":"https://supportportal.juniper.net/JSA71636"}],"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-703","description":"CWE-703 Improper Check or Handling of Exceptional Conditions","lang":"en","type":"CWE"}]},{"descriptions":[{"description":"Denial of Service (DoS)","lang":"en"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2023-07-14T14:56:32.306Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following sample configuration options highlight the features required to be affected by this issue:<br><tt>&nbsp; set services ssl proxy profile SSL-PROXY protocol-version tls12-and-lower<br>&nbsp; set services ssl proxy profile SSL-PROXY trusted-ca all<br>&nbsp; set services ssl proxy profile SSL-PROXY root-ca ssl-proxy-ecdsa1<br>&nbsp; set security pki ca-profile SECURITY-CA-GROUP_1 ca-identity SECURITY-CA-GROUP_1<br></tt>...<br><tt>&nbsp; set security utm default-configuration web-filtering juniper-enhanced default log-and-permit<br>&nbsp; set security utm feature-profile web-filtering juniper-enhanced profile 2 category ... action block<br></tt>...<br><tt>&nbsp; set security utm utm-policy 1 web-filtering http-profile 2<br></tt>...<br><tt>&nbsp; set security policies from-zone private to-zone internet policy 1 then permit application-services ssl-proxy profile-name SSL-PROXY<br>&nbsp; set security policies from-zone private to-zone internet policy 1 then permit application-services utm-policy 1</tt><br>"}],"value":"The following sample configuration options highlight the features required to be affected by this issue:\n  set services ssl proxy profile SSL-PROXY protocol-version tls12-and-lower\n  set services ssl proxy profile SSL-PROXY trusted-ca all\n  set services ssl proxy profile SSL-PROXY root-ca ssl-proxy-ecdsa1\n  set security pki ca-profile SECURITY-CA-GROUP_1 ca-identity SECURITY-CA-GROUP_1\n...\n  set security utm default-configuration web-filtering juniper-enhanced default log-and-permit\n  set security utm feature-profile web-filtering juniper-enhanced profile 2 category ... action block\n...\n  set security utm utm-policy 1 web-filtering http-profile 2\n...\n  set security policies from-zone private to-zone internet policy 1 then permit application-services ssl-proxy profile-name SSL-PROXY\n  set security policies from-zone private to-zone internet policy 1 then permit application-services utm-policy 1\n"}],"datePublic":"2023-07-12T16:00:00.000Z","exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.<br>"}],"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue: Junos OS 22.2R3, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.1R1, and all subsequent releases.<br>"}],"value":"The following software releases have been updated to resolve this specific issue: Junos OS 22.2R3, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.1R1, and all subsequent releases.\n"}],"source":{"defect":["1709031"],"discovery":"USER"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"There are no known workarounds for this issue.<br>"}],"value":"There are no known workarounds for this issue.\n"}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://supportportal.juniper.net/JSA71636","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T17:01:09.920Z"}},{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"juniper_networks","product":"junos_os","defaultStatus":"unknown","versions":[{"version":"22.2","status":"affected","lessThan":"22.2R3","versionType":"custom"},{"version":"22.3","status":"affected","lessThan":"22.3R2-S1","versionType":"custom"},{"version":"22.3","status":"affected","lessThan":"22.3R3","versionType":"custom"},{"version":"22.4","status":"affected","lessThan":"22.4R1-S2","versionType":"custom"},{"version":"22.4","status":"affected","lessThan":"22.4R2","versionType":"custom"},{"version":"0","status":"affected","lessThan":"22.2R2","versionType":"custom"}],"cpes":["cpe:2.3:a:juniper_networks:junos_os:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-11-07T14:39:03.046485Z","id":"CVE-2023-36831","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":"2024-11-07T14:41:49.644Z"}}]}}}