{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-1379", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2020-11-13T00:00:00.000Z", "datePublished": "2024-11-18T15:42:00.388Z", "dateUpdated": "2024-11-18T16:23:13.534Z"}, "containers": {"cna": {"title": "Cisco IP Phones Cisco Discovery Protocol and Link Layer Discovery Protocol Remote Code Execution and Denial of Service Vulnerabilities", "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/RL:X/RC:X/E:X", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}}], "descriptions": [{"lang": "en", "value": "Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone.\r\nThese vulnerabilities are due to missing checks when the IP phone processes a Cisco Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities."}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-rce-dos-U2PsSkz3", "name": "cisco-sa-ipphone-rce-dos-U2PsSkz3"}, {"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3", "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3"}], "exploits": [{"lang": "en", "value": "The Cisco\u00a0Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}], "source": {"advisory": "cisco-sa-ipphone-rce-dos-U2PsSkz3", "discovery": "EXTERNAL", "defects": ["CSCvu59351"]}, "problemTypes": [{"descriptions": [{"lang": "en", "description": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "type": "cwe", "cweId": "CWE-120"}]}], "affected": [{"vendor": "Cisco", "product": "Cisco IP Phones with Multiplatform Firmware", "versions": [{"version": "11.1.2", "status": "affected"}, {"version": "11.2.1", "status": "affected"}, {"version": "11.2.3", "status": "affected"}, {"version": "11.2.2", "status": "affected"}, {"version": "11.2.3 MSR1-1", "status": "affected"}, {"version": "11.1.2 MSR1-1", "status": "affected"}, {"version": "11.1.1", "status": "affected"}, {"version": "11.1.2 MSR3-1", "status": "affected"}, {"version": "11.0.0", "status": "affected"}, {"version": "11.1.1 MSR1-1", "status": "affected"}, {"version": "11.0.1", "status": "affected"}, {"version": "11.1.1 MSR2-1", "status": "affected"}, {"version": "11.2.4", "status": "affected"}, {"version": "11.0.1 MSR1-1", "status": "affected"}, {"version": "11.0.2", "status": "affected"}, {"version": "11.3.1", "status": "affected"}, {"version": "11.3.1 MSR1-3", "status": "affected"}, {"version": "11.3.2", "status": "affected"}, {"version": "11.3.1 MSR2-6", "status": "affected"}, {"version": "11.3.1 MSR3-3", "status": "affected"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Session Initiation Protocol (SIP) Software", "versions": [{"version": "9.0(3)", "status": "affected"}, {"version": "9.0(2)SR2", "status": "affected"}, {"version": "9.0(2)SR1", "status": "affected"}, {"version": "9.2(1)", "status": "affected"}, {"version": "9.4(2)SR1", "status": "affected"}, {"version": "9.4(2)", "status": "affected"}, {"version": "9.4(2)SR2", "status": "affected"}, {"version": "9.4(2)SR3", "status": "affected"}, {"version": "9.3(1)SR2", "status": "affected"}, {"version": "9.3(1)SR3", "status": "affected"}, {"version": "9.3(1)SR1", "status": "affected"}, {"version": "9.1(1)SR1", "status": "affected"}, {"version": "9.3(1)SR4", "status": "affected"}, {"version": "9.2(3)", "status": "affected"}, {"version": "9.2(1)SR2", "status": "affected"}, {"version": "9.3(1)", "status": "affected"}, {"version": "9.4(2)SR4", "status": "affected"}, {"version": "12.1(1)SR1", "status": "affected"}, {"version": "11.5(1)", "status": "affected"}, {"version": "10.3(2)", "status": "affected"}, {"version": "10.2(2)", "status": "affected"}, {"version": "10.3(1)", "status": "affected"}, {"version": "10.3(1)SR4", "status": "affected"}, {"version": "11.0(1)", "status": "affected"}, {"version": "10.4(1)SR2 3rd Party", "status": "affected"}, {"version": "11.7(1)", "status": "affected"}, {"version": "12.1(1)", "status": "affected"}, {"version": "11.0(0.7) MPP", "status": "affected"}, {"version": "9.3(4) 3rd Party", "status": "affected"}, {"version": "12.5(1)SR2", "status": "affected"}, {"version": "10.2(1)SR1", "status": "affected"}, {"version": "9.3(4)SR3 3rd Party", "status": "affected"}, {"version": "10.2(1)", "status": "affected"}, {"version": "12.5(1)", "status": "affected"}, {"version": "10.3(1)SR2", "status": "affected"}, {"version": "11-0-1MSR1-1", "status": "affected"}, {"version": "10.4(1) 3rd Party", "status": "affected"}, {"version": "12.5(1)SR1", "status": "affected"}, {"version": "11.5(1)SR1", "status": "affected"}, {"version": "10.1(1)SR2", "status": "affected"}, {"version": "12.0(1)SR2", "status": "affected"}, {"version": "12.6(1)", "status": "affected"}, {"version": "10.3(1.11) 3rd Party", "status": "affected"}, {"version": "12.0(1)", "status": "affected"}, {"version": "12.0(1)SR1", "status": "affected"}, {"version": "9.3(3)", "status": "affected"}, {"version": "12.5(1)SR3", "status": "affected"}, {"version": "10.3(1)SR4b", "status": "affected"}, {"version": "9.3(4)SR1 3rd Party", "status": "affected"}, {"version": "10.3(1)SR5", "status": "affected"}, {"version": "10.1(1.9)", "status": "affected"}, {"version": "10.3(1.9) 3rd Party", "status": "affected"}, {"version": "9.3(4)SR2 3rd Party", "status": "affected"}, {"version": "10.3(1)SR1", "status": "affected"}, {"version": "10.3(1)SR3", "status": "affected"}, {"version": "10.1(1)SR1", "status": "affected"}, {"version": "12.0(1)SR3", "status": "affected"}, {"version": "12.6(1)SR1", "status": "affected"}, {"version": "12.7(1)", "status": "affected"}, {"version": "10.3(1)SR6", "status": "affected"}, {"version": "12.8(1)", "status": "affected"}, {"version": "12.7(1)SR1", "status": "affected"}, {"version": "11.0(2)SR1", "status": "affected"}, {"version": "11.0(4)", "status": "affected"}, {"version": "11.0(2)", "status": "affected"}, {"version": "11.0(4)SR3", "status": "affected"}, {"version": "11.0(5)", "status": "affected"}, {"version": "11.0(3)SR2", "status": "affected"}, {"version": "11.0(3)SR4", "status": "affected"}, {"version": "11.0(3)SR3", "status": "affected"}, {"version": "11.0(2)SR2", "status": "affected"}, {"version": "11.0(4)SR1", "status": "affected"}, {"version": "11.0(5)SR3", "status": "affected"}, {"version": "11.0(3)", "status": "affected"}, {"version": "11.0(5)SR2", "status": "affected"}, {"version": "11.0(3)SR6", "status": "affected"}, {"version": "11.0(5)SR1", "status": "affected"}, {"version": "11.0(4)SR2", "status": "affected"}, {"version": "11.0(3)SR1", "status": "affected"}, {"version": "11.0(3)SR5", "status": "affected"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Small Business IP Phones", "versions": [{"version": "7.4.8", "status": "affected"}, {"version": "7.4.3", "status": "affected"}, {"version": "7.5.5a", "status": "affected"}, {"version": "7.3.7", "status": "affected"}, {"version": "7.5.2", "status": "affected"}, {"version": "7.5.1", "status": "affected"}, {"version": "7.4.6", "status": "affected"}, {"version": "7.5.7", "status": "affected"}, {"version": "7.4.4", "status": "affected"}, {"version": "7.6.2SR3", "status": "affected"}, {"version": "7.6.2", "status": "affected"}, {"version": "7.5.6", "status": "affected"}, {"version": "7.5.6c", "status": "affected"}, {"version": "7.6.0", "status": "affected"}, {"version": "7.4.7", "status": "affected"}, {"version": "7.6.2SR6", "status": "affected"}, {"version": "7.5.2b", "status": "affected"}, {"version": "7.5.5", "status": "affected"}, {"version": "7.5.6a", "status": "affected"}, {"version": "7.6.2SR2", "status": "affected"}, {"version": "7.5.3", "status": "affected"}, {"version": "7.5.2a", "status": "affected"}, {"version": "7.5.6(XU)", "status": "affected"}, {"version": "7.5.7s", "status": "affected"}, {"version": "7.6.2SR4", "status": "affected"}, {"version": "7.6.2SR1", "status": "affected"}, {"version": "7.4.9", "status": "affected"}, {"version": "7.5.5b", "status": "affected"}, {"version": "7.6.2SR5", "status": "affected"}, {"version": "7.5.4", "status": "affected"}, {"version": "7.6.1", "status": "affected"}, {"version": "7.6.2SR7", "status": "affected"}], "defaultStatus": "unknown"}], "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-11-18T15:42:00.388Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-11-18T16:22:56.651830Z", "id": "CVE-2021-1379", "options": 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{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-1379", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-11-18T16:22:56.651830Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-18T16:23:00.881Z"}}], "cna": {"title": "Cisco IP Phones Cisco Discovery Protocol and Link Layer Discovery Protocol Remote Code Execution and Denial of Service Vulnerabilities", "source": {"defects": ["CSCvu59351"], "advisory": "cisco-sa-ipphone-rce-dos-U2PsSkz3", "discovery": "EXTERNAL"}, "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/RL:X/RC:X/E:X", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "Cisco", "product": "Cisco IP Phones with Multiplatform Firmware", "versions": [{"status": "affected", "version": "11.1.2"}, {"status": "affected", "version": "11.2.1"}, {"status": "affected", "version": "11.2.3"}, {"status": "affected", "version": "11.2.2"}, {"status": "affected", "version": "11.2.3 MSR1-1"}, {"status": "affected", "version": "11.1.2 MSR1-1"}, {"status": "affected", "version": "11.1.1"}, {"status": "affected", "version": "11.1.2 MSR3-1"}, {"status": "affected", "version": "11.0.0"}, {"status": "affected", "version": "11.1.1 MSR1-1"}, {"status": "affected", "version": "11.0.1"}, {"status": "affected", "version": "11.1.1 MSR2-1"}, {"status": "affected", "version": "11.2.4"}, {"status": "affected", "version": "11.0.1 MSR1-1"}, {"status": "affected", "version": "11.0.2"}, {"status": "affected", "version": "11.3.1"}, {"status": "affected", "version": "11.3.1 MSR1-3"}, {"status": "affected", "version": "11.3.2"}, {"status": "affected", "version": "11.3.1 MSR2-6"}, {"status": "affected", "version": "11.3.1 MSR3-3"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Session Initiation Protocol (SIP) Software", "versions": [{"status": "affected", "version": "9.0(3)"}, {"status": "affected", "version": "9.0(2)SR2"}, {"status": "affected", "version": "9.0(2)SR1"}, {"status": "affected", "version": "9.2(1)"}, {"status": "affected", "version": "9.4(2)SR1"}, {"status": "affected", "version": "9.4(2)"}, {"status": "affected", "version": "9.4(2)SR2"}, {"status": "affected", "version": "9.4(2)SR3"}, {"status": "affected", "version": "9.3(1)SR2"}, {"status": "affected", "version": "9.3(1)SR3"}, {"status": "affected", "version": "9.3(1)SR1"}, {"status": "affected", "version": "9.1(1)SR1"}, {"status": "affected", "version": "9.3(1)SR4"}, {"status": "affected", "version": "9.2(3)"}, {"status": "affected", "version": "9.2(1)SR2"}, {"status": "affected", "version": "9.3(1)"}, {"status": "affected", "version": "9.4(2)SR4"}, {"status": "affected", "version": "12.1(1)SR1"}, {"status": "affected", "version": "11.5(1)"}, {"status": "affected", "version": "10.3(2)"}, {"status": "affected", "version": "10.2(2)"}, {"status": "affected", "version": "10.3(1)"}, {"status": "affected", "version": "10.3(1)SR4"}, {"status": "affected", "version": "11.0(1)"}, {"status": "affected", "version": "10.4(1)SR2 3rd Party"}, {"status": "affected", "version": "11.7(1)"}, {"status": "affected", "version": "12.1(1)"}, {"status": "affected", "version": "11.0(0.7) MPP"}, {"status": "affected", "version": "9.3(4) 3rd Party"}, {"status": "affected", "version": "12.5(1)SR2"}, {"status": "affected", "version": "10.2(1)SR1"}, {"status": "affected", "version": "9.3(4)SR3 3rd Party"}, {"status": "affected", "version": "10.2(1)"}, {"status": "affected", "version": "12.5(1)"}, {"status": "affected", "version": "10.3(1)SR2"}, {"status": "affected", "version": "11-0-1MSR1-1"}, {"status": "affected", "version": "10.4(1) 3rd Party"}, {"status": "affected", "version": "12.5(1)SR1"}, {"status": "affected", "version": "11.5(1)SR1"}, {"status": "affected", "version": "10.1(1)SR2"}, {"status": "affected", "version": "12.0(1)SR2"}, {"status": "affected", "version": "12.6(1)"}, {"status": "affected", "version": "10.3(1.11) 3rd Party"}, {"status": "affected", "version": "12.0(1)"}, {"status": "affected", "version": "12.0(1)SR1"}, {"status": "affected", "version": "9.3(3)"}, {"status": "affected", "version": "12.5(1)SR3"}, {"status": "affected", "version": "10.3(1)SR4b"}, {"status": "affected", "version": "9.3(4)SR1 3rd Party"}, {"status": "affected", "version": "10.3(1)SR5"}, {"status": "affected", "version": "10.1(1.9)"}, {"status": "affected", "version": "10.3(1.9) 3rd Party"}, {"status": "affected", "version": "9.3(4)SR2 3rd Party"}, {"status": "affected", "version": "10.3(1)SR1"}, {"status": "affected", "version": "10.3(1)SR3"}, {"status": "affected", "version": "10.1(1)SR1"}, {"status": "affected", "version": "12.0(1)SR3"}, {"status": "affected", "version": "12.6(1)SR1"}, {"status": "affected", "version": "12.7(1)"}, {"status": "affected", "version": "10.3(1)SR6"}, {"status": "affected", "version": "12.8(1)"}, {"status": "affected", "version": "12.7(1)SR1"}, {"status": "affected", "version": "11.0(2)SR1"}, {"status": "affected", "version": "11.0(4)"}, {"status": "affected", "version": "11.0(2)"}, {"status": "affected", "version": "11.0(4)SR3"}, {"status": "affected", "version": "11.0(5)"}, {"status": "affected", "version": "11.0(3)SR2"}, {"status": "affected", "version": "11.0(3)SR4"}, {"status": "affected", "version": "11.0(3)SR3"}, {"status": "affected", "version": "11.0(2)SR2"}, {"status": "affected", "version": "11.0(4)SR1"}, {"status": "affected", "version": "11.0(5)SR3"}, {"status": "affected", "version": "11.0(3)"}, {"status": "affected", "version": "11.0(5)SR2"}, {"status": "affected", "version": "11.0(3)SR6"}, {"status": "affected", "version": "11.0(5)SR1"}, {"status": "affected", "version": "11.0(4)SR2"}, {"status": "affected", "version": "11.0(3)SR1"}, {"status": "affected", "version": "11.0(3)SR5"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Small Business IP Phones", "versions": [{"status": "affected", "version": "7.4.8"}, {"status": "affected", "version": "7.4.3"}, {"status": "affected", "version": "7.5.5a"}, {"status": "affected", "version": "7.3.7"}, {"status": "affected", "version": "7.5.2"}, {"status": "affected", "version": "7.5.1"}, {"status": "affected", "version": "7.4.6"}, {"status": "affected", "version": "7.5.7"}, {"status": "affected", "version": "7.4.4"}, {"status": "affected", "version": "7.6.2SR3"}, {"status": "affected", "version": "7.6.2"}, {"status": "affected", "version": "7.5.6"}, {"status": "affected", "version": "7.5.6c"}, {"status": "affected", "version": "7.6.0"}, {"status": "affected", "version": "7.4.7"}, {"status": "affected", "version": "7.6.2SR6"}, {"status": "affected", "version": "7.5.2b"}, {"status": "affected", "version": "7.5.5"}, {"status": "affected", "version": "7.5.6a"}, {"status": "affected", "version": "7.6.2SR2"}, {"status": "affected", "version": "7.5.3"}, {"status": "affected", "version": "7.5.2a"}, {"status": "affected", "version": "7.5.6(XU)"}, {"status": "affected", "version": "7.5.7s"}, {"status": "affected", "version": "7.6.2SR4"}, {"status": "affected", "version": "7.6.2SR1"}, {"status": "affected", "version": "7.4.9"}, {"status": "affected", "version": "7.5.5b"}, {"status": "affected", "version": "7.6.2SR5"}, {"status": "affected", "version": "7.5.4"}, {"status": "affected", "version": "7.6.1"}, {"status": "affected", "version": "7.6.2SR7"}], "defaultStatus": "unknown"}], "exploits": [{"lang": "en", "value": "The Cisco\u00a0Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-rce-dos-U2PsSkz3", "name": "cisco-sa-ipphone-rce-dos-U2PsSkz3"}, {"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3", "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3"}], "descriptions": [{"lang": "en", "value": "Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone.\r\nThese vulnerabilities are due to missing checks when the IP phone processes a Cisco Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "cwe", "cweId": "CWE-120", "description": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-11-18T15:42:00.388Z"}}}, "cveMetadata": {"cveId": "CVE-2021-1379", "state": "PUBLISHED", "dateUpdated": "2024-11-18T16:23:13.534Z", "dateReserved": "2020-11-13T00:00:00.000Z", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "datePublished": "2024-11-18T15:42:00.388Z", "assignerShortName": "cisco"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone.\r\nThese vulnerabilities are due to missing checks when the IP phone processes a Cisco Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities."}, {"lang": "es", "value": "Varias vulnerabilidades en las implementaciones de Cisco Discovery Protocol y Link Layer Discovery Protocol (LLDP) para los tel\u00e9fonos IP de Cisco de las series 68xx/78xx/88xx podr\u00edan permitir que un atacante adyacente no autenticado ejecute c\u00f3digo de forma remota o provoque una recarga de un tel\u00e9fono IP afectado. Estas vulnerabilidades se deben a la falta de comprobaciones cuando el tel\u00e9fono IP procesa un paquete Cisco Discovery Protocol o LLDP. Un atacante podr\u00eda explotar estas vulnerabilidades enviando un paquete Cisco Discovery Protocol o LLDP malicioso al tel\u00e9fono IP de destino. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante ejecutar c\u00f3digo en el tel\u00e9fono IP afectado o hacer que se recargue inesperadamente, lo que resultar\u00eda en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Nota: Cisco Discovery Protocol es un protocolo de capa 2. Para explotar estas vulnerabilidades, un atacante debe estar en el mismo dominio de difusi\u00f3n que el dispositivo afectado (adyacente a la capa 2). Cisco ha publicado actualizaciones de software que solucionan estas vulnerabilidades. No existen workarounds que solucionen estas vulnerabilidades."}], "id": "CVE-2021-1379", "lastModified": "2024-11-18T17:11:17.393", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "ykramarz@cisco.com", "type": "Primary"}]}, "published": "2024-11-18T16:15:09.310", "references": [{"source": "ykramarz@cisco.com", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-rce-dos-U2PsSkz3"}, {"source": "ykramarz@cisco.com", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3"}], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "ykramarz@cisco.com", "type": "Primary"}]}

{}