{"id":"CVE-2022-22194","state":"PUBLISHED","title":"Junos OS Evolved: PTX series: An attacker sending a crafted GRE packet will cause the PFE to restart","description":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the packetIO daemon of Juniper Networks Junos OS Evolved on PTX10003, PTX10004, and PTX10008 allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). Continued receipt of these crafted packets will cause a sustained Denial of Service condition. This issue affects Juniper Networks Junos OS Evolved all versions prior to 20.4R2-S3-EVO on PTX10003, PTX10004, and PTX10008. This issue does not affect: Juniper Networks Junos OS Evolved versions 21.1R1-EVO and above; Juniper Networks Junos OS.","publishedAt":"2022-04-14T15:50:55.258Z","updatedAt":"2024-09-17T04:20:48.042Z","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 Evolved","Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS Evolved","versions":[{"version":"unspecified","status":"affected","lessThan":"20.4R2-S3-EVO, 20.4R3-EVO","versionType":"custom"}],"platforms":["PTX10003, PTX10004, PTX10008"]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","versions":[{"version":"21.1R1-EVO","status":"unaffected","lessThan":"21.1*","versionType":"custom"}]},{"vendor":"Juniper Networks","product":"Junos OS","versions":[{"version":"any","status":"unaffected"}]}],"references":["https://kb.juniper.net/JSA69505"],"weaknesses":["CWE-754"],"ingestedAt":"2026-10-29T19:49:38.433Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/22xxx/CVE-2022-22194.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-22194","state":"PUBLISHED","datePublished":"2022-04-14T15:50:55.258Z","dateUpdated":"2024-09-17T04:20:48.042Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2021-12-21T00:00:00.000Z"},"containers":{"cna":{"title":"Junos OS Evolved: PTX series: An attacker sending a crafted GRE packet will cause the PFE to restart","descriptions":[{"lang":"en","value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the packetIO daemon of Juniper Networks Junos OS Evolved on PTX10003, PTX10004, and PTX10008 allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). Continued receipt of these crafted packets will cause a sustained Denial of Service condition. This issue affects Juniper Networks Junos OS Evolved all versions prior to 20.4R2-S3-EVO on PTX10003, PTX10004, and PTX10008. This issue does not affect: Juniper Networks Junos OS Evolved versions 21.1R1-EVO and above; Juniper Networks Junos OS."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS Evolved","versions":[{"version":"unspecified","status":"affected","lessThan":"20.4R2-S3-EVO, 20.4R3-EVO","versionType":"custom"}],"platforms":["PTX10003, PTX10004, PTX10008"]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","versions":[{"version":"21.1R1-EVO","status":"unaffected","lessThan":"21.1*","versionType":"custom"}]},{"vendor":"Juniper Networks","product":"Junos OS","versions":[{"version":"any","status":"unaffected"}]}],"references":[{"url":"https://kb.juniper.net/JSA69505","tags":["x_refsource_CONFIRM"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-754","description":"CWE-754 Improper Check for Unusual or Exceptional Conditions","lang":"en","type":"CWE"}]},{"descriptions":[{"description":"Denial of Service (DoS)","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"juniper","dateUpdated":"2022-04-14T15:50:55.000Z","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968"},"datePublic":"2022-04-13T00:00:00.000Z","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: 20.4R2-S3-EVO, 20.4R3-EVO."}],"source":{"advisory":"JSA69505","defect":["1614171"],"discovery":"USER"},"workarounds":[{"lang":"en","value":"One characteristic of this vulnerability is that an FPC restart will only be triggered by a crafted GRE packet which has its' TTL set to 0 or 1 so as a workaround a filter can be implemented that drops such packets:\n\n  set firewall family inet filter GREfilter term 1 from protocol gre\n  set firewall family inet filter GREfilter term 1 from ttl 0\n  set firewall family inet filter GREfilter term 1 then count gre-ttl-0\n  set firewall family inet filter GREfilter term 1 then discard\n  set firewall family inet filter GREfilter term 2 from protocol gre\n  set firewall family inet filter GREfilter term 2 from ttl 1\n  set firewall family inet filter GREfilter term 2 then count gre-ttl-1\n  set firewall family inet filter GREfilter term 2 then discard\n  set firewall family inet filter GREfilter term default then accept\n\nAn equivalent filter for family inet6 is required if IPv6 is configured on at least one interface."}],"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"sirt@juniper.net","DATE_PUBLIC":"2022-04-13T07:00:00.000Z","ID":"CVE-2022-22194","STATE":"PUBLIC","TITLE":"Junos OS Evolved: PTX series: An attacker sending a crafted GRE packet will cause the PFE to restart"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Junos OS Evolved","version":{"version_data":[{"platform":"PTX10003, PTX10004, PTX10008","version_affected":"<","version_value":"20.4R2-S3-EVO, 20.4R3-EVO"},{"version_affected":"!>","version_name":"21.1","version_value":"21.1R1-EVO"}]}},{"product_name":"Junos OS","version":{"version_data":[{"version_affected":"!","version_value":"any"}]}}]},"vendor_name":"Juniper Networks"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the packetIO daemon of Juniper Networks Junos OS Evolved on PTX10003, PTX10004, and PTX10008 allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). Continued receipt of these crafted packets will cause a sustained Denial of Service condition. This issue affects Juniper Networks Junos OS Evolved all versions prior to 20.4R2-S3-EVO on PTX10003, PTX10004, and PTX10008. This issue does not affect: Juniper Networks Junos OS Evolved versions 21.1R1-EVO and above; Juniper Networks Junos OS."}]},"exploit":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"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"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-754 Improper Check for Unusual or Exceptional Conditions"}]},{"description":[{"lang":"eng","value":"Denial of Service (DoS)"}]}]},"references":{"reference_data":[{"name":"https://kb.juniper.net/JSA69505","refsource":"CONFIRM","url":"https://kb.juniper.net/JSA69505"}]},"solution":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 20.4R2-S3-EVO, 20.4R3-EVO."}],"source":{"advisory":"JSA69505","defect":["1614171"],"discovery":"USER"},"work_around":[{"lang":"en","value":"One characteristic of this vulnerability is that an FPC restart will only be triggered by a crafted GRE packet which has its' TTL set to 0 or 1 so as a workaround a filter can be implemented that drops such packets:\n\n  set firewall family inet filter GREfilter term 1 from protocol gre\n  set firewall family inet filter GREfilter term 1 from ttl 0\n  set firewall family inet filter GREfilter term 1 then count gre-ttl-0\n  set firewall family inet filter GREfilter term 1 then discard\n  set firewall family inet filter GREfilter term 2 from protocol gre\n  set firewall family inet filter GREfilter term 2 from ttl 1\n  set firewall family inet filter GREfilter term 2 then count gre-ttl-1\n  set firewall family inet filter GREfilter term 2 then discard\n  set firewall family inet filter GREfilter term default then accept\n\nAn equivalent filter for family inet6 is required if IPv6 is configured on at least one interface."}]}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://kb.juniper.net/JSA69505","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T03:07:49.881Z"}}]}}}