{"id":"CVE-2024-39529","state":"PUBLISHED","title":"Junos OS: SRX Series: If DNS traceoptions are configured in a DGA or tunnel detection scenario specific DNS traffic leads to a PFE crash","description":"A Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).\n\n\n\nIf DNS Domain Generation Algorithm (DGA) detection or tunnel detection, and DNS-filtering traceoptions are configured, and specific valid transit DNS traffic is received this causes a PFE crash and restart, leading to a Denial of Service.\n\nThis issue affects Junos OS: \n  *  All versions before 21.4R3-S6,\n  *  22.2 versions before 22.2R3-S3,\n  *  22.3 versions before 22.3R3-S3,\n  *  22.4 versions before 22.4R3,\n  *  23.2 versions before 23.2R2.","publishedAt":"2024-07-11T16:03:26.980Z","updatedAt":"2024-08-02T04:26:15.162Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4R3-S6","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S3","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2","versionType":"semver"}],"platforms":["SRX Series"]}],"references":["https://supportportal.juniper.net/JSA82988"],"weaknesses":["CWE-134"],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/39xxx/CVE-2024-39529.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-39529","state":"PUBLISHED","datePublished":"2024-07-11T16:03:26.980Z","dateUpdated":"2024-08-02T04:26:15.162Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2024-06-25T15:12:53.240Z"},"containers":{"cna":{"title":"Junos OS: SRX Series: If DNS traceoptions are configured in a DGA or tunnel detection scenario specific DNS traffic leads to a PFE crash","descriptions":[{"lang":"en","value":"A Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).\n\n\n\nIf DNS Domain Generation Algorithm (DGA) detection or tunnel detection, and DNS-filtering traceoptions are configured, and specific valid transit DNS traffic is received this causes a PFE crash and restart, leading to a Denial of Service.\n\nThis issue affects Junos OS: \n  *  All versions before 21.4R3-S6,\n  *  22.2 versions before 22.2R3-S3,\n  *  22.3 versions before 22.3R3-S3,\n  *  22.4 versions before 22.4R3,\n  *  23.2 versions before 23.2R2."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4R3-S6","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S3","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2","versionType":"semver"}],"platforms":["SRX Series"]}],"references":[{"url":"https://supportportal.juniper.net/JSA82988","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"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/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-134","description":"CWE-134 Use of Externally-Controlled Format String","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2024-07-11T16:03:26.980Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"To be exposed to this issue at least one of DGA or tunnel detection needs to be configured:<br><br><tt>[ services security-metadata-streaming policy &lt;name&gt; dns detections dga ]<br>\n\n[ services security-metadata-streaming policy &lt;name&gt; dns detections tunneling ]</tt>\n\n<br><br>and DNS traceoptions have to be configured:<br><br><tt>[ services dns-filtering traceoptions ... ]</tt>"}],"value":"To be exposed to this issue at least one of DGA or tunnel detection needs to be configured:\n\n[ services security-metadata-streaming policy <name> dns detections dga ]\n\n\n[ services security-metadata-streaming policy <name> dns detections tunneling ]\n\n\n\nand DNS traceoptions have to be configured:\n\n[ services dns-filtering traceoptions ... ]"}],"datePublic":"2024-07-10T16:00:00.000Z","exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue: 21.4R3-S6, 22.2R3-S3, 22.3R3-S3, 22.4R3, 23.2R2, 23.4R1, and all subsequent releases."}],"value":"The following software releases have been updated to resolve this specific issue: 21.4R3-S6, 22.2R3-S3, 22.3R3-S3, 22.4R3, 23.2R2, 23.4R1, and all subsequent releases."}],"source":{"advisory":"JSA82988","defect":["1755484"],"discovery":"USER"},"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-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"juniper","product":"junos_os","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"21.4r3-s6","versionType":"custom"},{"version":"22.2","status":"affected","lessThan":"22.2r3-s3","versionType":"custom"},{"version":"22.3","status":"affected","lessThan":"22.3r3-s3","versionType":"custom"},{"version":"22.4","status":"affected","lessThan":"22.4r3","versionType":"custom"},{"version":"23.2","status":"affected","lessThan":"23.2r2","versionType":"custom"}],"cpes":["cpe:2.3:o:juniper:junos_os:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-07-11T18:27:00.817170Z","id":"CVE-2024-39529","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":"2024-07-12T16:35:49.572Z"}},{"title":"CVE Program Container","references":[{"url":"https://supportportal.juniper.net/JSA82988","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T04:26:15.162Z"}}]}}}