#Cisco ios xe eol software#
This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS Software or Cisco IOS XE Software and are configured as a DHCP relay agent.įor information about which Cisco IOS and IOS XE Software releases are vulnerable, see the Fixed Software section of this advisory. For a complete list of the advisories and links to them, see Cisco Event Response: September 2017 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. This advisory is part of the September 27, 2017, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 12 Cisco Security Advisories that describe 13 vulnerabilities. This advisory is available at the following link: There are no workarounds that address this vulnerability.
#Cisco ios xe eol full#
A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition.Ĭisco has released software updates that address this vulnerability. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The DHCP relay subsystem of Cisco IOS and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system.
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