CVE:CVE-2019-1684
CNNVD:CNNVD-201902-797
Cisco IP Phone 7800和8800 Series中的Cisco Discovery Protocol或Link Layer Discovery Protocol (LLDP) 的实现存在资源管理错误漏洞，该漏洞源于程序缺少对Cisco Discovery Protocol or LLDP数据包报头字段进行程度验证。攻击者可通过发送恶意的数据包利用该漏洞造成电话重新加载，导致拒绝服务。以下产品和版本受到影响：Cisco IP Conference Phone 7832 12.5(1)SR1之前版本；IP Conference Phone 8832 12.5(1)SR1之前版本；IP Phone 7811 12.5(1)SR1之前版本；IP Phone 7821 12.5(1)SR1之前版本；IP Phone 7841 12.5(1)SR1之前版本；IP Phone 7861 12.5(1)SR1之前版本；IP Phone 8800 Series 12.5(1)SR1之前版本；IP Phone 8800 Series with Multiplatform Firmware 12.5(1)SR1之前版本；IP Phone 8800 Series - VPN feature 12.5(1)SR1之前版本；IP Phone 8861 12.5(1)SR1之前版本；IP Phone 8865 with Multiplatform Firmware 12.5(1)SR1之前版本；IP Phone 8865 12.5(1)SR1之前版本；Unified IP Conference Phone 8831 12.5(1)SR1之前版本；Unified IP Conference Phone 8831 for Third-Party Call Control 12.5(1)SR1之前版本；Wireless IP Phone 8821 12.5(1)SR1之前版本。
solution:Upgrade cisco ip_phone_8800_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_7800_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_conference_phone_7832_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_conference_phone_8832_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_7811_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_7821_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_7841_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_7861_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_8811_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_8841_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_8845_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_8851_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_8861_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80); Upgrade cisco ip_phone_8865_firmware to a higher version than 12.6\(1\mn80,and avoid the version (,12.6\(1\)mn80)