CVE-2022-20846

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-bng-Gmg5Gxt", "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-bng-Gmg5Gxt</a></p><p>This advisory is part of the September 2022 release of the Cisco&nbsp;IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see <a href=\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74840\">Cisco&nbsp;Event Response: September 2022 Semiannual Cisco&nbsp;IOS XR Software Security Advisory Bundled Publica", "tags": ["Not Applicable"], "refsource": ""}, {"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs4k-tl1-GNnLwC6", "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs4k-tl1-GNnLwC6</a></p><p>This advisory is part of the September 2022 release of the Cisco&nbsp;IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see <a href=\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74840\">Cisco&nbsp;Event Response: September 2022 Semiannual Cisco&nbsp;IOS XR Software Security Advisory Bundled Publica", "tags": ["Not Applicable"], "refsource": ""}, {"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xr-cdp-wnALzvT2", "name": "cisco-sa-xr-cdp-wnALzvT2", "tags": ["Vendor Advisory"], "refsource": ""}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "A vulnerability in the Cisco&nbsp;Discovery Protocol implementation for Cisco&nbsp;IOS XR Software could allow an unauthenticated, adjacent attacker to cause the Cisco&nbsp;Discovery Protocol process to reload on an affected device.\r\nThis vulnerability is due to a heap buffer overflow in certain Cisco&nbsp;Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco&nbsp;Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow, which could cause the Cisco&nbsp;Discovery Protocol process to reload on the device. The bytes that can be written in the buffer overflow are restricted, which limits remote code execution.Note: Cisco&nbsp;Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). &nbsp;Cisco&nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.This advisory is part of the September 2022 release of the Cisco&nbsp;IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see ."}]}, "problemtype": {"problemtype_data": [{"description": []}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-20846", "ASSIGNER": "psirt@cisco.com"}}, "impact": {}, "publishedDate": "2024-11-15T16:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:cisco:ios_xr:7.0.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:cisco:ios_xr:7.1.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:cisco:ios_xr:6.5.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:cisco:ios_xr:6.5.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:cisco:ios_xr:6.5.3:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:cisco:ios_xr:6.6.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:cisco:ios_xr:6.6.2:*:*:*:*:*:*:*", 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