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cve-2021-1523
Vulnerability from cvelistv5
▼ | Vendor | Product |
---|---|---|
Cisco | Cisco NX-OS System Software in ACI Mode |
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This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. Note: This vulnerability requires a manual intervention to power-cycle the device to recover." } ], "exploits": [ { "lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-772", "description": "CWE-772", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-08-25T19:10:10", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco" }, "references": [ { "name": "20210825 Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability", "tags": [ "vendor-advisory", "x_refsource_CISCO" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF" } ], "source": { "advisory": "cisco-sa-n9kaci-queue-wedge-cLDDEfKF", "defect": [ [ "CSCvx14142" ] ], "discovery": "INTERNAL" }, "title": "Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-08-25T16:00:00", "ID": "CVE-2021-1523", "STATE": "PUBLIC", "TITLE": "Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cisco NX-OS System Software in ACI Mode", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "Cisco" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. 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This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. 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Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que una queue de paquetes espec\u00edfica ponga en queue los b\u00faferes de red pero nunca los procese, conllevando a un eventual acu\u00f1amiento de queues. Esto podr\u00eda causar que el tr\u00e1fico del plano de control se caiga, resultando en una condici\u00f3n de denegaci\u00f3n de servicio (DoS) donde los switches de la hoja no est\u00e1n disponibles. Nota: Esta vulnerabilidad requiere una intervenci\u00f3n manual para apagar el dispositivo y recuperarlo.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":5.0},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-772\"}]},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-772\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:13.2\\\\(3n\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CEBC0A74-551B-4BD1-A59A-80C119362D60\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:14.2\\\\(4i\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9563DBDC-D2C0-4C7C-A246-EC95DC4581CA\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07DE6F63-2C7D-415B-8C34-01EC05C062F3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F423E45D-A6DD-4305-9C6A-EAB26293E53A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"113772B6-E9D2-4094-9468-3F4E1A87D07D\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4364ADB9-8162-451D-806A-B98924E6B2CF\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B53BCB42-ED61-4FCF-8068-CB467631C63C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"49E0371B-FDE2-473C-AA59-47E1269D050F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"489D11EC-5A18-4F32-BC7C-AC1FCEC27222\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1BC5293E-F2B4-46DC-85DA-167EA323FCFD\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EA022E77-6557-4A33-9A3A-D028E2DB669A\"}]}]}],\"references\":[{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"Vendor Advisory\"]}]}}" } }
cisco-sa-n9kaci-queue-wedge-clddefkf
Vulnerability from csaf_cisco
Notes
{ "document": { "acknowledgments": [ { "summary": "This vulnerability was found during the resolution of a Cisco TAC support case." } ], "category": "csaf_security_advisory", "csaf_version": "2.0", "notes": [ { "category": "summary", "text": "A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric.\r\n\r\nThis vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable.\r\n\r\nNote: This vulnerability requires a manual intervention to power-cycle the device to recover.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF\"]\r\n\r\nThis advisory is part of the August 2021 Cisco FXOS and NX-OS Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: August 2021 Cisco FXOS and NX-OS Software Security Advisory Bundled Publication [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74640\"].", "title": "Summary" }, { "category": "general", "text": "This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI mode that are Generation 1 models. The list of leaf switches that are Generation 1 models and are considered vulnerable is as follows:\r\n\r\n N9K-C9372PX-E\r\n N9K-C9372TX-E\r\n N9K-C9332PQ\r\n N9K-C9372PX\r\n N9K-C9372TX\r\n N9K-C9396PX\r\n N9K-C9396TX\r\n N9K-C93128TX\r\n N9K-C93120TX\r\n\r\nDetermine the Device Model\r\n\r\nThe administrator can issue the show model command at the CLI to determine the presence of Generation 1 switches. In this example, the model N9K-C9396PX is Generation 1, so the device is considered vulnerable.\r\n\r\n\r\nnxosaci# show model\r\nMod Ports Module-Type Model Status\r\n--- ----- ------------------------------ ------------------ ---------- 1 60 1/10G Ethernet Module N9K-C9396PX active *\r\n\r\nThe Cisco Nexus 9000 Series Fabric Switches in ACI mode that are Generation 1 are no longer supported as of software Release 15.0(1). See Cisco Nexus 9000 ACI-Mode Switches Release Notes, Release 15.0(1) [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/5-x/release-notes/cisco-aci-nx-os-release-notes-1501.html#_Toc57796778\"] for additional information.", "title": "Vulnerable Products" }, { "category": "general", "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following Cisco products:\r\n\r\nFirepower 1000 Series\r\nFirepower 2100 Series\r\nFirepower 4100 Series\r\nFirepower 9300 Security Appliances\r\nMDS 9000 Series Multilayer Switches\r\nNexus 1000 Virtual Edge for VMware vSphere\r\nNexus 1000V Switch for Microsoft Hyper-V\r\nNexus 1000V Switch for VMware vSphere\r\nNexus 3000 Series Switches\r\nNexus 5500 Platform Switches\r\nNexus 5600 Platform Switches\r\nNexus 6000 Series Switches\r\nNexus 7000 Series Switches\r\nNexus 9000 Series Fabric Switches in ACI mode (Generation 2 models only)\r\nNexus 9000 Series Switches in standalone NX-OS mode\r\nUCS 6200 Series Fabric Interconnects\r\nUCS 6300 Series Fabric Interconnects\r\nUCS 6400 Series Fabric Interconnects", "title": "Products Confirmed Not Vulnerable" }, { "category": "general", "text": "There are no workarounds that address this vulnerability.\r\n\r\nA possible mitigation for this vulnerability is available for customers who cannot upgrade to a fixed release; however, it does not persist after each reload but can be used as a stopgap measure until the device can be upgraded. To coordinate implementation of the mitigation, contact the Cisco Technical Assistance Center (TAC) [\"https://www.cisco.com/go/tac/\"].\r\n\r\nWhile this mitigation has been deployed and was proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.", "title": "Workarounds" }, { "category": "general", "text": "Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n Customers Without Service Contracts\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n Cisco NX-OS Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco NX-OS Software, Cisco provides the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] to identify any Cisco Security Advisories that impact a specific Cisco NX-OS Software release and the earliest release that fixes the vulnerabilities that are described in each advisory (\u201cFirst Fixed\u201d). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities described in all the advisories identified (\u201cCombined First Fixed\u201d).\r\n\r\nCustomers can use the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] to search advisories in the following ways:\r\n\r\nChoose the software, platform, and one or more releases\r\nUpload a .txt file that includes a list of specific releases\r\nEnter the output of the show version command\r\n\r\nAfter initiating a search, customers can customize the search to include all Cisco Security Advisories or one or more specific advisories.\r\n\r\nCustomers can also use the following form to determine whether a release is affected by any Cisco Security Advisory by choosing the Cisco NX-OS Software and platform and then entering a release\u2014for example, 7.0(3)I7(5) for Cisco Nexus 3000 Series Switches or 14.0(1h) for Cisco NX-OS Software in ACI mode:\r\n Cisco NX-OS Software Cisco NX-OS Software in ACI Mode MDS 9000 Series Multilayer Switches Nexus 1000V Series Switches Nexus 3000 Series Switches Nexus 5000 Series Switches Nexus 6000 Series Switches Nexus 7000 Series Switches Nexus 9000 Series Switches\r\n\r\n\r\n\r\n\r\nBy default, the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] includes results only for vulnerabilities that have a Critical or High Security Impact Rating (SIR). To include results for Medium SIR vulnerabilities, customers can use the Cisco Software Checker and check the Medium check box in the drop-down list under Impact Rating when customizing a search.\r\n Additional Resources\r\nFor help determining the best Cisco NX-OS Software release for a Cisco Nexus Switch, see the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance.\r\n\r\n\r\nCisco MDS Series Switches [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/b_MDS_NX-OS_Recommended_Releases.html\"]\r\nCisco Nexus 1000V for VMware Switch [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/recommended_releases/b_Cisco_N1KV_VMware_MinRecommendedReleases.html\"]\r\nCisco Nexus 3000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_3000_Series_Switches.html\"]\r\nCisco Nexus 5500 Platform Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/release/recommended_releases/n5500_recommended_nx-os_releases.html\"]\r\nCisco Nexus 5600 Platform Switches [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5600/sw/release/recommended_releases/n5600_recommended_nx-os_releases.html\"]\r\nCisco Nexus 6000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus6000/sw/release/recommended_releases/recommended_nx-os_releases.html\"]\r\nCisco Nexus 7000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/recommended_releases/recommended_nx-os_releases.html\"]\r\nCisco Nexus 9000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_9000_Series_Switches.html\"]\r\nCisco Nexus 9000 Series ACI-Mode Switches [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/recommended-release/b_Recommended_Cisco_ACI_Releases.html\"]\r\n\r\nTo determine the best release for Cisco UCS Software, see the Recommended Releases documents in the release notes for the device.", "title": "Fixed Software" }, { "category": "general", "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.", "title": "Vulnerability Policy" }, { "category": "general", "text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.", "title": "Exploitation and Public Announcements" }, { "category": "general", "text": "This vulnerability was found during the resolution of a Cisco TAC support case.", "title": "Source" }, { "category": "legal_disclaimer", "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.", "title": "Legal Disclaimer" } ], "publisher": { "category": "vendor", "contact_details": "Emergency Support:\r\n+1 877 228 7302 (toll-free within North America)\r\n+1 408 525 6532 (International direct-dial)\r\nNon-emergency Support:\r\nEmail: psirt@cisco.com\r\nSupport requests that are received via e-mail are typically acknowledged within 48 hours.", "issuing_authority": "Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.\r\nMore information can be found in Cisco Security Vulnerability Policy available at https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html", "name": "Cisco", "namespace": "https://wwww.cisco.com" }, "references": [ { "category": "self", "summary": "Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF" }, { "category": "external", "summary": "Cisco Event Response: August 2021 Semiannual Cisco FXOS and NX-OS Software Security Advisory Bundled Publication", "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74640" }, { "category": "external", "summary": "Cisco Security Vulnerability Policy", "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html" }, { "category": "external", "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF" }, { "category": "external", "summary": "Cisco\u0026nbsp;Event Response: August 2021 Cisco\u0026nbsp;FXOS and NX-OS Software Security Advisory Bundled Publication", "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74640" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 9000 ACI-Mode Switches Release Notes, Release 15.0(1)", "url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/5-x/release-notes/cisco-aci-nx-os-release-notes-1501.html#_Toc57796778" }, { "category": "external", "summary": "Cisco\u0026nbsp;Technical Assistance Center (TAC)", "url": "https://www.cisco.com/go/tac/" }, { "category": "external", "summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html", "url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html" }, { "category": "external", "summary": "considering software upgrades", "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes" }, { "category": "external", "summary": "Cisco\u0026nbsp;Security Advisories page", "url": "https://www.cisco.com/go/psirt" }, { "category": "external", "summary": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html", "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Software Checker", "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x" }, { "category": "external", "summary": "Cisco\u0026nbsp;Software Checker", "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x" }, { "category": "external", "summary": "Cisco\u0026nbsp;Software Checker", "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x" }, { "category": "external", "summary": "Cisco\u0026nbsp;MDS Series Switches", "url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/b_MDS_NX-OS_Recommended_Releases.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 1000V for VMware Switch", "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/recommended_releases/b_Cisco_N1KV_VMware_MinRecommendedReleases.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 3000 Series Switches", "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_3000_Series_Switches.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 5500 Platform Switches", "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/release/recommended_releases/n5500_recommended_nx-os_releases.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 5600 Platform Switches", "url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5600/sw/release/recommended_releases/n5600_recommended_nx-os_releases.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 6000 Series Switches", "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus6000/sw/release/recommended_releases/recommended_nx-os_releases.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 7000 Series Switches", "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/recommended_releases/recommended_nx-os_releases.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 9000 Series Switches", "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_9000_Series_Switches.html" }, { "category": "external", "summary": "Cisco\u0026nbsp;Nexus 9000 Series ACI-Mode Switches", "url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/recommended-release/b_Recommended_Cisco_ACI_Releases.html" }, { "category": "external", "summary": "Security Vulnerability Policy", "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html" } ], "title": "Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability", "tracking": { "current_release_date": "2021-08-25T16:00:00+00:00", "generator": { "date": "2022-10-22T03:10:32+00:00", "engine": { "name": "TVCE" } }, "id": "cisco-sa-n9kaci-queue-wedge-cLDDEfKF", "initial_release_date": "2021-08-25T16:00:00+00:00", "revision_history": [ { "date": "2021-08-25T15:49:11+00:00", "number": "1.0.0", "summary": "Initial public release." } ], "status": "final", "version": "1.0.0" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "branches": [ { "category": "service_pack", "name": "12.0(1m)", "product": { "name": "12.0(1m)", "product_id": "CSAFPID-241210" } }, { "category": "service_pack", "name": "12.0(2g)", "product": { "name": "12.0(2g)", "product_id": "CSAFPID-241231" } }, { "category": "service_pack", "name": "12.0(1n)", "product": { "name": "12.0(1n)", "product_id": "CSAFPID-241351" } }, { "category": "service_pack", "name": "12.0(1o)", "product": { "name": "12.0(1o)", "product_id": "CSAFPID-241352" } }, { "category": "service_pack", "name": "12.0(1p)", "product": { "name": "12.0(1p)", "product_id": "CSAFPID-241353" } }, { "category": "service_pack", "name": "12.0(1q)", "product": { "name": "12.0(1q)", "product_id": "CSAFPID-241354" } }, { "category": "service_pack", "name": "12.0(2h)", "product": { "name": "12.0(2h)", "product_id": "CSAFPID-241355" } }, { "category": "service_pack", "name": "12.0(2l)", "product": { "name": "12.0(2l)", "product_id": "CSAFPID-241356" } }, { "category": "service_pack", "name": "12.0(2m)", "product": { "name": "12.0(2m)", "product_id": "CSAFPID-241357" } }, { "category": "service_pack", "name": "12.0(2n)", "product": { "name": "12.0(2n)", "product_id": "CSAFPID-241358" } }, { "category": "service_pack", "name": "12.0(2o)", "product": { "name": "12.0(2o)", "product_id": "CSAFPID-241359" } }, { "category": "service_pack", "name": "12.0(2f)", "product": { "name": "12.0(2f)", "product_id": "CSAFPID-241360" } }, { "category": "service_pack", "name": "12.0(1r)", "product": { "name": "12.0(1r)", "product_id": "CSAFPID-257369" } } ], "category": "product_version", "name": "12.0" }, { "branches": [ { "category": "service_pack", "name": "12.1(1h)", "product": { "name": "12.1(1h)", "product_id": "CSAFPID-241212" } }, { "category": "service_pack", "name": "12.1(2e)", "product": { "name": "12.1(2e)", "product_id": "CSAFPID-241228" } }, { "category": "service_pack", "name": "12.1(3g)", "product": { "name": "12.1(3g)", "product_id": "CSAFPID-241229" } }, { "category": "service_pack", "name": "12.1(4a)", "product": { "name": "12.1(4a)", "product_id": "CSAFPID-241230" } }, { "category": "service_pack", "name": "12.1(1i)", "product": { "name": "12.1(1i)", "product_id": "CSAFPID-241283" } }, { "category": "service_pack", "name": "12.1(2g)", "product": { "name": "12.1(2g)", "product_id": "CSAFPID-241309" } }, { "category": "service_pack", "name": "12.1(2k)", "product": { "name": "12.1(2k)", "product_id": "CSAFPID-241310" } }, { "category": "service_pack", "name": "12.1(3h)", "product": { "name": "12.1(3h)", "product_id": "CSAFPID-241349" } }, { "category": "service_pack", "name": "12.1(3j)", "product": { "name": "12.1(3j)", "product_id": "CSAFPID-241350" } } ], "category": "product_version", "name": "12.1" }, { "branches": [ { "category": "service_pack", "name": "12.2(1n)", "product": { "name": "12.2(1n)", "product_id": "CSAFPID-241214" } }, { "category": "service_pack", "name": "12.2(2e)", "product": { "name": "12.2(2e)", "product_id": "CSAFPID-241225" } }, { "category": "service_pack", "name": "12.2(3j)", "product": { "name": "12.2(3j)", "product_id": "CSAFPID-241226" } }, { "category": "service_pack", "name": "12.2(4f)", "product": { "name": "12.2(4f)", "product_id": "CSAFPID-241227" } }, { "category": "service_pack", "name": "12.2(4p)", "product": { "name": "12.2(4p)", "product_id": "CSAFPID-241268" } }, { "category": "service_pack", "name": "12.2(3p)", "product": { "name": "12.2(3p)", "product_id": "CSAFPID-241272" } }, { "category": "service_pack", "name": "12.2(3r)", "product": { "name": "12.2(3r)", "product_id": "CSAFPID-241273" } }, { "category": "service_pack", "name": "12.2(3s)", "product": { "name": "12.2(3s)", "product_id": "CSAFPID-241274" } }, { "category": "service_pack", "name": "12.2(3t)", "product": { "name": "12.2(3t)", "product_id": "CSAFPID-241275" } }, { "category": "service_pack", "name": "12.2(2f)", "product": { "name": "12.2(2f)", "product_id": "CSAFPID-241276" } }, { "category": "service_pack", "name": "12.2(2i)", "product": { "name": "12.2(2i)", "product_id": "CSAFPID-241278" } }, { "category": "service_pack", "name": "12.2(2j)", "product": { "name": "12.2(2j)", "product_id": "CSAFPID-241279" } }, { "category": "service_pack", "name": "12.2(2k)", "product": { "name": "12.2(2k)", "product_id": "CSAFPID-241280" } }, { "category": "service_pack", "name": "12.2(2q)", "product": { "name": "12.2(2q)", "product_id": "CSAFPID-241281" } }, { "category": "service_pack", "name": "12.2(1o)", "product": { "name": "12.2(1o)", "product_id": "CSAFPID-241282" } }, { "category": "service_pack", "name": "12.2(4q)", "product": { "name": "12.2(4q)", "product_id": "CSAFPID-257370" } }, { "category": "service_pack", "name": "12.2(4r)", "product": { "name": "12.2(4r)", "product_id": "CSAFPID-257371" } }, { "category": "service_pack", "name": "12.2(1k)", "product": { "name": "12.2(1k)", "product_id": "CSAFPID-264659" } } ], "category": "product_version", "name": "12.2" }, { "branches": [ { "category": "service_pack", "name": "12.3(1e)", "product": { "name": "12.3(1e)", "product_id": "CSAFPID-241216" } }, { "category": "service_pack", "name": "12.3(1f)", "product": { "name": "12.3(1f)", "product_id": "CSAFPID-241263" } }, { "category": "service_pack", "name": "12.3(1i)", "product": { "name": "12.3(1i)", "product_id": "CSAFPID-241264" } }, { "category": "service_pack", "name": "12.3(1l)", "product": { "name": "12.3(1l)", "product_id": "CSAFPID-241265" } }, { "category": "service_pack", "name": "12.3(1o)", "product": { "name": "12.3(1o)", "product_id": "CSAFPID-241266" } }, { "category": "service_pack", "name": "12.3(1p)", "product": { "name": "12.3(1p)", "product_id": "CSAFPID-241267" } } ], "category": "product_version", "name": "12.3" }, { "branches": [ { "category": "service_pack", "name": "13.0(1k)", "product": { "name": "13.0(1k)", "product_id": "CSAFPID-241218" } }, { "category": "service_pack", "name": "13.0(2h)", "product": { "name": "13.0(2h)", "product_id": "CSAFPID-241224" } }, { "category": "service_pack", "name": "13.0(2k)", "product": { "name": "13.0(2k)", "product_id": "CSAFPID-241261" } }, { "category": "service_pack", "name": "13.0(2n)", "product": { "name": "13.0(2n)", "product_id": "CSAFPID-241262" } } ], "category": "product_version", "name": "13.0" }, { "branches": [ { "category": "service_pack", "name": "13.1(1i)", "product": { "name": "13.1(1i)", "product_id": "CSAFPID-241220" } }, { "category": "service_pack", "name": "13.1(2m)", "product": { "name": "13.1(2m)", "product_id": "CSAFPID-241223" } }, { "category": "service_pack", "name": "13.1(2o)", "product": { "name": "13.1(2o)", "product_id": "CSAFPID-241258" } }, { "category": "service_pack", "name": "13.1(2p)", "product": { "name": "13.1(2p)", "product_id": "CSAFPID-241259" } }, { "category": "service_pack", "name": "13.1(2q)", "product": { "name": "13.1(2q)", "product_id": "CSAFPID-241260" } }, { "category": "service_pack", "name": "13.1(2s)", "product": { "name": "13.1(2s)", "product_id": "CSAFPID-257372" } }, { "category": "service_pack", "name": "13.1(2t)", "product": { "name": "13.1(2t)", "product_id": "CSAFPID-257373" } }, { "category": "service_pack", "name": "13.1(2u)", "product": { "name": "13.1(2u)", "product_id": "CSAFPID-264656" } }, { "category": "service_pack", "name": "13.1(2v)", "product": { "name": "13.1(2v)", "product_id": "CSAFPID-273934" } } ], "category": "product_version", "name": "13.1" }, { "branches": [ { "category": "service_pack", "name": "13.2(1l)", "product": { "name": "13.2(1l)", "product_id": "CSAFPID-241222" } }, { "category": "service_pack", "name": "13.2(1m)", "product": { "name": "13.2(1m)", "product_id": "CSAFPID-241257" } }, { "category": "service_pack", "name": "13.2(2l)", "product": { "name": "13.2(2l)", "product_id": "CSAFPID-257374" } }, { "category": "service_pack", "name": "13.2(2o)", "product": { "name": "13.2(2o)", "product_id": "CSAFPID-257375" } }, { "category": "service_pack", "name": "13.2(3i)", "product": { "name": "13.2(3i)", "product_id": "CSAFPID-257376" } }, { "category": "service_pack", "name": "13.2(3n)", "product": { "name": "13.2(3n)", "product_id": "CSAFPID-257377" } }, { "category": "service_pack", "name": "13.2(3o)", "product": { "name": "13.2(3o)", "product_id": "CSAFPID-257378" } }, { "category": "service_pack", "name": "13.2(3r)", "product": { "name": "13.2(3r)", "product_id": "CSAFPID-257379" } }, { "category": "service_pack", "name": "13.2(4d)", "product": { "name": "13.2(4d)", "product_id": "CSAFPID-257757" } }, { "category": "service_pack", "name": "13.2(4e)", "product": { "name": "13.2(4e)", "product_id": "CSAFPID-257758" } }, { "category": "service_pack", "name": "13.2(3j)", "product": { "name": "13.2(3j)", "product_id": "CSAFPID-264650" } }, { "category": "service_pack", "name": "13.2(3s)", "product": { "name": "13.2(3s)", "product_id": "CSAFPID-264651" } }, { "category": "service_pack", "name": "13.2(5d)", "product": { "name": "13.2(5d)", "product_id": "CSAFPID-264652" } }, { "category": "service_pack", "name": "13.2(5e)", "product": { "name": "13.2(5e)", "product_id": "CSAFPID-264653" } }, { "category": "service_pack", "name": "13.2(5f)", "product": { "name": "13.2(5f)", "product_id": "CSAFPID-264654" } }, { "category": "service_pack", "name": "13.2(6i)", "product": { "name": "13.2(6i)", "product_id": "CSAFPID-264655" } }, { "category": "service_pack", "name": "13.2(41d)", "product": { "name": "13.2(41d)", "product_id": "CSAFPID-273935" } }, { "category": "service_pack", "name": "13.2(7f)", "product": { "name": "13.2(7f)", "product_id": "CSAFPID-273936" } }, { "category": "service_pack", "name": "13.2(7k)", "product": { "name": "13.2(7k)", "product_id": "CSAFPID-273937" } }, { "category": "service_pack", "name": "13.2(9b)", "product": { "name": "13.2(9b)", "product_id": "CSAFPID-273938" } }, { "category": "service_pack", "name": "13.2(8d)", "product": { "name": "13.2(8d)", "product_id": "CSAFPID-274786" } }, { "category": "service_pack", "name": "13.2(9f)", "product": { "name": "13.2(9f)", "product_id": "CSAFPID-277151" } }, { "category": "service_pack", "name": "13.2(9h)", "product": { "name": "13.2(9h)", "product_id": "CSAFPID-277349" } } ], "category": "product_version", "name": "13.2" }, { "branches": [ { "category": "service_pack", "name": "14.0(1h)", "product": { "name": "14.0(1h)", "product_id": "CSAFPID-257580" } }, { "category": "service_pack", "name": "14.0(2c)", "product": { "name": "14.0(2c)", "product_id": "CSAFPID-257581" } }, { "category": "service_pack", "name": "14.0(3d)", "product": { "name": "14.0(3d)", "product_id": "CSAFPID-259822" } }, { "category": "service_pack", "name": "14.0(3c)", "product": { "name": "14.0(3c)", "product_id": "CSAFPID-264644" } } ], "category": "product_version", "name": 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"CSAFPID-281001", "relates_to_product_reference": "CSAFPID-265096" }, { "category": "installed_on", "full_product_name": { "name": "Cisco NX-OS System Software in ACI Mode 14.2(6h) when installed on Cisco Nexus 9000 Series Switches", "product_id": "CSAFPID-281317:265096" }, "product_reference": "CSAFPID-281317", "relates_to_product_reference": "CSAFPID-265096" }, { "category": "installed_on", "full_product_name": { "name": "Cisco NX-OS System Software in ACI Mode 14.2(6l) when installed on Cisco Nexus 9000 Series Switches", "product_id": "CSAFPID-281585:265096" }, "product_reference": "CSAFPID-281585", "relates_to_product_reference": "CSAFPID-265096" }, { "category": "installed_on", "full_product_name": { "name": "Cisco NX-OS System Software in ACI Mode 14.2(6o) when installed on Cisco Nexus 9000 Series Switches", "product_id": "CSAFPID-284295:265096" }, "product_reference": "CSAFPID-284295", "relates_to_product_reference": "CSAFPID-265096" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-1523", "ids": [ { "system_name": "Cisco Bug ID", "text": "CSCvx14142" } ], "notes": [ { "category": "other", "text": "Complete.", "title": "Affected Product Comprehensiveness" } ], "product_status": { "known_affected": [ "CSAFPID-241202", "CSAFPID-241210:265096", "CSAFPID-241212:265096", "CSAFPID-241214:265096", "CSAFPID-241216:265096", "CSAFPID-241218:265096", "CSAFPID-241220:265096", "CSAFPID-241222:265096", "CSAFPID-241223:265096", "CSAFPID-241224:265096", "CSAFPID-241225:265096", "CSAFPID-241226:265096", "CSAFPID-241227:265096", "CSAFPID-241228:265096", "CSAFPID-241229:265096", "CSAFPID-241230:265096", "CSAFPID-241231:265096", "CSAFPID-241257:265096", "CSAFPID-241258:265096", "CSAFPID-241259:265096", "CSAFPID-241260:265096", "CSAFPID-241261:265096", "CSAFPID-241262:265096", "CSAFPID-241263:265096", "CSAFPID-241264:265096", "CSAFPID-241265:265096", "CSAFPID-241266:265096", "CSAFPID-241267:265096", "CSAFPID-241268:265096", "CSAFPID-241272:265096", "CSAFPID-241273:265096", "CSAFPID-241274:265096", "CSAFPID-241275:265096", "CSAFPID-241276:265096", "CSAFPID-241278:265096", "CSAFPID-241279:265096", "CSAFPID-241280:265096", "CSAFPID-241281:265096", "CSAFPID-241282:265096", "CSAFPID-241283:265096", "CSAFPID-241309:265096", "CSAFPID-241310:265096", "CSAFPID-241349:265096", "CSAFPID-241350:265096", "CSAFPID-241351:265096", "CSAFPID-241352:265096", "CSAFPID-241353:265096", "CSAFPID-241354:265096", "CSAFPID-241355:265096", "CSAFPID-241356:265096", "CSAFPID-241357:265096", "CSAFPID-241358:265096", "CSAFPID-241359:265096", "CSAFPID-241360:265096", "CSAFPID-257369:265096", "CSAFPID-257370:265096", "CSAFPID-257371:265096", "CSAFPID-257372:265096", "CSAFPID-257373:265096", "CSAFPID-257374:265096", "CSAFPID-257375:265096", "CSAFPID-257376:265096", "CSAFPID-257377:265096", "CSAFPID-257378:265096", "CSAFPID-257379:265096", "CSAFPID-257580:265096", "CSAFPID-257581:265096", "CSAFPID-257757:265096", "CSAFPID-257758:265096", "CSAFPID-259822:265096", "CSAFPID-264644:265096", "CSAFPID-264646:265096", "CSAFPID-264647:265096", "CSAFPID-264648:265096", "CSAFPID-264649:265096", "CSAFPID-264650:265096", "CSAFPID-264651:265096", "CSAFPID-264652:265096", "CSAFPID-264653:265096", "CSAFPID-264654:265096", "CSAFPID-264655:265096", "CSAFPID-264656:265096", "CSAFPID-264659:265096", "CSAFPID-265564:265096", "CSAFPID-273934:265096", "CSAFPID-273935:265096", "CSAFPID-273936:265096", "CSAFPID-273937:265096", "CSAFPID-273938:265096", "CSAFPID-273939:265096", "CSAFPID-273940:265096", "CSAFPID-273941:265096", "CSAFPID-273942:265096", "CSAFPID-273944:265096", "CSAFPID-273945:265096", "CSAFPID-273946:265096", "CSAFPID-273947:265096", "CSAFPID-273948:265096", "CSAFPID-273949:265096", "CSAFPID-273950:265096", "CSAFPID-274558:265096", "CSAFPID-274786:265096", "CSAFPID-275887:265096", "CSAFPID-276890:265096", "CSAFPID-276891:265096", "CSAFPID-277151:265096", "CSAFPID-277320:265096", "CSAFPID-277349:265096", "CSAFPID-277351:265096", "CSAFPID-278028:265096", "CSAFPID-278782:265096", "CSAFPID-279381:265096", "CSAFPID-279461:265096", "CSAFPID-280216:265096", "CSAFPID-280465:265096", "CSAFPID-280772:265096", "CSAFPID-281001:265096", "CSAFPID-281317:265096", "CSAFPID-281585:265096", "CSAFPID-284295:265096" ] }, "release_date": "2021-08-25T16:00:00+00:00", "remediations": [ { "category": "vendor_fix", "details": "Cisco has released software updates that address this vulnerability.", "product_ids": [ "CSAFPID-241202", "CSAFPID-241210:265096", "CSAFPID-241212:265096", "CSAFPID-241214:265096", "CSAFPID-241216:265096", "CSAFPID-241218:265096", "CSAFPID-241220:265096", "CSAFPID-241222:265096", "CSAFPID-241223:265096", "CSAFPID-241224:265096", "CSAFPID-241225:265096", "CSAFPID-241226:265096", "CSAFPID-241227:265096", "CSAFPID-241228:265096", "CSAFPID-241229:265096", "CSAFPID-241230:265096", "CSAFPID-241231:265096", "CSAFPID-241257:265096", "CSAFPID-241258:265096", "CSAFPID-241259:265096", "CSAFPID-241260:265096", "CSAFPID-241261:265096", "CSAFPID-241262:265096", "CSAFPID-241263:265096", "CSAFPID-241264:265096", "CSAFPID-241265:265096", "CSAFPID-241266:265096", "CSAFPID-241267:265096", "CSAFPID-241268:265096", "CSAFPID-241272:265096", "CSAFPID-241273:265096", "CSAFPID-241274:265096", "CSAFPID-241275:265096", "CSAFPID-241276:265096", "CSAFPID-241278:265096", "CSAFPID-241279:265096", "CSAFPID-241280:265096", "CSAFPID-241281:265096", "CSAFPID-241282:265096", "CSAFPID-241283:265096", "CSAFPID-241309:265096", "CSAFPID-241310:265096", "CSAFPID-241349:265096", "CSAFPID-241350:265096", "CSAFPID-241351:265096", "CSAFPID-241352:265096", "CSAFPID-241353:265096", "CSAFPID-241354:265096", "CSAFPID-241355:265096", "CSAFPID-241356:265096", "CSAFPID-241357:265096", "CSAFPID-241358:265096", "CSAFPID-241359:265096", "CSAFPID-241360:265096", "CSAFPID-257369:265096", "CSAFPID-257370:265096", "CSAFPID-257371:265096", "CSAFPID-257372:265096", "CSAFPID-257373:265096", "CSAFPID-257374:265096", "CSAFPID-257375:265096", "CSAFPID-257376:265096", "CSAFPID-257377:265096", "CSAFPID-257378:265096", "CSAFPID-257379:265096", "CSAFPID-257580:265096", "CSAFPID-257581:265096", "CSAFPID-257757:265096", "CSAFPID-257758:265096", "CSAFPID-259822:265096", "CSAFPID-264644:265096", "CSAFPID-264646:265096", "CSAFPID-264647:265096", "CSAFPID-264648:265096", "CSAFPID-264649:265096", "CSAFPID-264650:265096", "CSAFPID-264651:265096", "CSAFPID-264652:265096", "CSAFPID-264653:265096", "CSAFPID-264654:265096", "CSAFPID-264655:265096", "CSAFPID-264656:265096", "CSAFPID-264659:265096", "CSAFPID-265564:265096", "CSAFPID-273934:265096", "CSAFPID-273935:265096", "CSAFPID-273936:265096", "CSAFPID-273937:265096", "CSAFPID-273938:265096", "CSAFPID-273939:265096", "CSAFPID-273940:265096", "CSAFPID-273941:265096", "CSAFPID-273942:265096", "CSAFPID-273944:265096", "CSAFPID-273945:265096", "CSAFPID-273946:265096", "CSAFPID-273947:265096", "CSAFPID-273948:265096", "CSAFPID-273949:265096", "CSAFPID-273950:265096", "CSAFPID-274558:265096", "CSAFPID-274786:265096", "CSAFPID-275887:265096", "CSAFPID-276890:265096", "CSAFPID-276891:265096", "CSAFPID-277151:265096", "CSAFPID-277320:265096", "CSAFPID-277349:265096", "CSAFPID-277351:265096", "CSAFPID-278028:265096", "CSAFPID-278782:265096", "CSAFPID-279381:265096", "CSAFPID-279461:265096", "CSAFPID-280216:265096", "CSAFPID-280465:265096", "CSAFPID-280772:265096", "CSAFPID-281001:265096", "CSAFPID-281317:265096", "CSAFPID-281585:265096", "CSAFPID-284295:265096" ], "url": "https://software.cisco.com" } ], "scores": [ { "cvss_v3": { "baseScore": 8.6, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1" }, "products": [ "CSAFPID-241202", "CSAFPID-241210:265096", "CSAFPID-241212:265096", "CSAFPID-241214:265096", "CSAFPID-241216:265096", "CSAFPID-241218:265096", "CSAFPID-241220:265096", "CSAFPID-241222:265096", "CSAFPID-241223:265096", "CSAFPID-241224:265096", "CSAFPID-241225:265096", "CSAFPID-241226:265096", "CSAFPID-241227:265096", "CSAFPID-241228:265096", "CSAFPID-241229:265096", "CSAFPID-241230:265096", "CSAFPID-241231:265096", "CSAFPID-241257:265096", "CSAFPID-241258:265096", "CSAFPID-241259:265096", "CSAFPID-241260:265096", "CSAFPID-241261:265096", "CSAFPID-241262:265096", "CSAFPID-241263:265096", "CSAFPID-241264:265096", "CSAFPID-241265:265096", "CSAFPID-241266:265096", "CSAFPID-241267:265096", "CSAFPID-241268:265096", "CSAFPID-241272:265096", "CSAFPID-241273:265096", "CSAFPID-241274:265096", "CSAFPID-241275:265096", "CSAFPID-241276:265096", "CSAFPID-241278:265096", "CSAFPID-241279:265096", "CSAFPID-241280:265096", "CSAFPID-241281:265096", "CSAFPID-241282:265096", "CSAFPID-241283:265096", "CSAFPID-241309:265096", "CSAFPID-241310:265096", "CSAFPID-241349:265096", "CSAFPID-241350:265096", "CSAFPID-241351:265096", "CSAFPID-241352:265096", "CSAFPID-241353:265096", "CSAFPID-241354:265096", "CSAFPID-241355:265096", "CSAFPID-241356:265096", "CSAFPID-241357:265096", "CSAFPID-241358:265096", "CSAFPID-241359:265096", "CSAFPID-241360:265096", "CSAFPID-257369:265096", "CSAFPID-257370:265096", "CSAFPID-257371:265096", "CSAFPID-257372:265096", "CSAFPID-257373:265096", "CSAFPID-257374:265096", "CSAFPID-257375:265096", "CSAFPID-257376:265096", "CSAFPID-257377:265096", "CSAFPID-257378:265096", "CSAFPID-257379:265096", "CSAFPID-257580:265096", "CSAFPID-257581:265096", "CSAFPID-257757:265096", "CSAFPID-257758:265096", "CSAFPID-259822:265096", "CSAFPID-264644:265096", "CSAFPID-264646:265096", "CSAFPID-264647:265096", "CSAFPID-264648:265096", "CSAFPID-264649:265096", "CSAFPID-264650:265096", "CSAFPID-264651:265096", "CSAFPID-264652:265096", "CSAFPID-264653:265096", "CSAFPID-264654:265096", "CSAFPID-264655:265096", "CSAFPID-264656:265096", "CSAFPID-264659:265096", "CSAFPID-265564:265096", "CSAFPID-273934:265096", "CSAFPID-273935:265096", "CSAFPID-273936:265096", "CSAFPID-273937:265096", "CSAFPID-273938:265096", "CSAFPID-273939:265096", "CSAFPID-273940:265096", "CSAFPID-273941:265096", "CSAFPID-273942:265096", "CSAFPID-273944:265096", "CSAFPID-273945:265096", "CSAFPID-273946:265096", "CSAFPID-273947:265096", "CSAFPID-273948:265096", "CSAFPID-273949:265096", "CSAFPID-273950:265096", "CSAFPID-274558:265096", "CSAFPID-274786:265096", "CSAFPID-275887:265096", "CSAFPID-276890:265096", "CSAFPID-276891:265096", "CSAFPID-277151:265096", "CSAFPID-277320:265096", "CSAFPID-277349:265096", "CSAFPID-277351:265096", "CSAFPID-278028:265096", "CSAFPID-278782:265096", "CSAFPID-279381:265096", "CSAFPID-279461:265096", "CSAFPID-280216:265096", "CSAFPID-280465:265096", "CSAFPID-280772:265096", "CSAFPID-281001:265096", "CSAFPID-281317:265096", "CSAFPID-281585:265096", "CSAFPID-284295:265096" ] } ], "title": "Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure Mode Queue Wedge Denial of Service Vulnerability" } ] }
ghsa-f58x-5qwh-88r6
Vulnerability from github
A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. Note: This vulnerability requires a manual intervention to power-cycle the device to recover.
{ "affected": [], "aliases": [ "CVE-2021-1523" ], "database_specific": { "cwe_ids": [ "CWE-772" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-08-25T19:15:00Z", "severity": "HIGH" }, "details": "A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. Note: This vulnerability requires a manual intervention to power-cycle the device to recover.", "id": "GHSA-f58x-5qwh-88r6", "modified": "2022-05-24T19:12:11Z", "published": "2022-05-24T19:12:11Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1523" }, { "type": "WEB", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF" } ], "schema_version": "1.4.0", "severity": [] }
gsd-2021-1523
Vulnerability from gsd
{ "GSD": { "alias": "CVE-2021-1523", "description": "A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. Note: This vulnerability requires a manual intervention to power-cycle the device to recover.", "id": "GSD-2021-1523" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-1523" ], "details": "A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. Note: This vulnerability requires a manual intervention to power-cycle the device to recover.", "id": "GSD-2021-1523", "modified": "2023-12-13T01:23:23.412489Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-08-25T16:00:00", "ID": "CVE-2021-1523", "STATE": "PUBLIC", "TITLE": "Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cisco NX-OS System Software in ACI Mode ", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "Cisco" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. Note: This vulnerability requires a manual intervention to power-cycle the device to recover." } ] }, "exploit": [ { "lang": "eng", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. " } ], "impact": { "cvss": { "baseScore": "8.6", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H ", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-772" } ] } ] }, "references": { "reference_data": [ { "name": "20210825 Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF" } ] }, "source": { "advisory": "cisco-sa-n9kaci-queue-wedge-cLDDEfKF", "defect": [ [ "CSCvx14142" ] ], "discovery": "INTERNAL" } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:nx-os:13.2\\(3n\\):*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:nx-os:14.2\\(4i\\):*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false }, { "cpe23Uri": "cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false }, { "cpe23Uri": "cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false }, { "cpe23Uri": "cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false }, { "cpe23Uri": "cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false }, { "cpe23Uri": "cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false }, { "cpe23Uri": "cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false }, { "cpe23Uri": "cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false }, { "cpe23Uri": "cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false } ], "operator": "OR" } ], "cpe_match": [], "operator": "AND" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "ID": "CVE-2021-1523" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. Note: This vulnerability requires a manual intervention to power-cycle the device to recover." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-772" } ] } ] }, "references": { "reference_data": [ { "name": "20210825 Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability", "refsource": "CISCO", "tags": [ "Vendor Advisory" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 4.0 } }, "lastModifiedDate": "2021-09-02T11:22Z", "publishedDate": "2021-08-25T19:15Z" } } }
Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.