{"id":"CVE-2022-22236","state":"PUBLISHED","title":"Junos OS: SRX Series and MX Series: When specific valid SIP packets are received the PFE will crash","description":"An Access of Uninitialized Pointer vulnerability in SIP Application Layer Gateway (ALG) of Juniper Networks Junos OS on SRX Series and MX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When specific valid SIP packets are received the PFE will crash and restart. This issue affects Juniper Networks Junos OS on SRX Series and MX Series: 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R2-S2, 21.3R3; 21.4 versions prior to 21.4R1-S2, 21.4R2; 22.1 versions prior to 22.1R1-S1, 22.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1.","publishedAt":"2022-10-18T02:46:38.240Z","updatedAt":"2025-05-10T02:37:41.505Z","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","versions":[{"version":"unspecified","status":"unaffected","lessThan":"20.4R1","versionType":"custom"},{"version":"20.4","status":"affected","lessThan":"20.4R3-S4","versionType":"custom"},{"version":"21.1","status":"affected","lessThan":"21.1R3-S2","versionType":"custom"},{"version":"21.2","status":"affected","lessThan":"21.2R3-S2","versionType":"custom"},{"version":"21.3","status":"affected","lessThan":"21.3R2-S2, 21.3R3","versionType":"custom"},{"version":"21.4","status":"affected","lessThan":"21.4R1-S2, 21.4R2","versionType":"custom"},{"version":"22.1","status":"affected","lessThan":"22.1R1-S1, 22.1R2","versionType":"custom"}],"platforms":["SRX Series, MX Series"]}],"references":["https://kb.juniper.net/JSA69892"],"weaknesses":["CWE-824"],"ingestedAt":"2026-10-29T19:49:38.433Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/22xxx/CVE-2022-22236.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-22236","state":"PUBLISHED","datePublished":"2022-10-18T02:46:38.240Z","dateUpdated":"2025-05-10T02:37:41.505Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2021-12-21T00:00:00.000Z"},"containers":{"cna":{"title":"Junos OS: SRX Series and MX Series: When specific valid SIP packets are received the PFE will crash","descriptions":[{"lang":"en","value":"An Access of Uninitialized Pointer vulnerability in SIP Application Layer Gateway (ALG) of Juniper Networks Junos OS on SRX Series and MX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When specific valid SIP packets are received the PFE will crash and restart. This issue affects Juniper Networks Junos OS on SRX Series and MX Series: 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R2-S2, 21.3R3; 21.4 versions prior to 21.4R1-S2, 21.4R2; 22.1 versions prior to 22.1R1-S1, 22.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","versions":[{"version":"unspecified","status":"unaffected","lessThan":"20.4R1","versionType":"custom"},{"version":"20.4","status":"affected","lessThan":"20.4R3-S4","versionType":"custom"},{"version":"21.1","status":"affected","lessThan":"21.1R3-S2","versionType":"custom"},{"version":"21.2","status":"affected","lessThan":"21.2R3-S2","versionType":"custom"},{"version":"21.3","status":"affected","lessThan":"21.3R2-S2, 21.3R3","versionType":"custom"},{"version":"21.4","status":"affected","lessThan":"21.4R1-S2, 21.4R2","versionType":"custom"},{"version":"22.1","status":"affected","lessThan":"22.1R1-S1, 22.1R2","versionType":"custom"}],"platforms":["SRX Series, MX Series"]}],"references":[{"url":"https://kb.juniper.net/JSA69892"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-824","type":"CWE","lang":"en","description":"CWE-824 Access of Uninitialized Pointer"}]},{"descriptions":[{"type":"text","lang":"en","description":"Denial of Service (DoS)"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2022-10-18T00:00:00.000Z"},"datePublic":"2022-10-12T00:00:00.000Z","x_generator":{"engine":"Vulnogram 0.0.9"},"source":{"advisory":"JSA69892","defect":["1650755"],"discovery":"USER"},"configurations":[{"lang":"en","value":"To be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration.\n\nPlease verify on SRX with:\n\n  user@host> show security alg status | match sip\n  SIP : Enabled\n\nPlease verify on MX whether the following is configured:\n\n  [services ... rule <rule-name> (term <term-name> ) from/match application/application-set <name>]\nwhere either\n  a. name = junos-sip\nor an application or application-set refers to SIP:\n  b. [applications application <name> application-protocol sip]\nor\n  c. [applications application-set <name> application junos-sip]"}],"workarounds":[{"lang":"en","value":"There are no known workarounds for this issue."}],"exploits":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"solutions":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 20.4R3-S4, 21.1R3-S2, 21.2R3-S2, 21.3R2-S2, 21.3R3, 21.4R1-S2, 21.4R2, 22.1R1-S1, 22.1R2, 22.2R1, and all subsequent releases."}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://kb.juniper.net/JSA69892","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T03:07:49.874Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-10T02:37:28.251239Z","id":"CVE-2022-22236","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":"2025-05-10T02:37:41.505Z"}}]}}}