CVE-2019-1814: A vulnerability in the interactions between the DHCP and TFTP features for Cisco Small Business 300 Series (Sx300) Managed Switches could allow an…

high8.6CVSS 3.1

AVNACLPRNUINSCCNINAH

A vulnerability in the interactions between the DHCP and TFTP features for Cisco Small Business 300 Series (Sx300) Managed Switches could allow an unauthenticated, remote attacker to cause the device to become low on system memory, which in turn could lead to an unexpected reload of the device and result in a denial of service (DoS) condition on an affected device. The vulnerability is due to a failure to free system memory when an unexpected DHCP request is received. An attacker could exploit this vulnerability by sending a crafted DHCP packet to the targeted device. A successful exploit could allow the attacker to cause an unexpected reload of the device.

Affected

29 ranges· showing 25

Vendor	Product	Version range	Fixed in
cisco	cisco_small_business_300_series_managed_switches	—	—
cisco	sf300-08_firmware	< 1.4.10.6	1.4.10.6
cisco	sf300-24_firmware	< 1.4.10.6	1.4.10.6
cisco	sf300-24mp_firmware	< 1.4.10.6	1.4.10.6
cisco	sf300-24p_firmware	< 1.4.10.6	1.4.10.6
cisco	sf300-24pp_firmware	< 1.4.10.6	1.4.10.6
cisco	sf300-48_firmware	< 1.4.10.6	1.4.10.6
cisco	sf300-48p_firmware	< 1.4.10.6	1.4.10.6
cisco	sf300-48pp_firmware	< 1.4.10.6	1.4.10.6
cisco	sf302-08_firmware	< 1.4.10.6	1.4.10.6
cisco	sf302-08mp_firmware	< 1.4.10.6	1.4.10.6
cisco	sf302-08mpp_firmware	< 1.4.10.6	1.4.10.6
cisco	sf302-08p_firmware	< 1.4.10.6	1.4.10.6
cisco	sf302-08pp_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-10_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-10mp_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-10mpp_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-10p_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-10pp_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-10sfp_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-20_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-28_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-28mp_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-28p_firmware	< 1.4.10.6	1.4.10.6
cisco	sg300-28pp_firmware	< 1.4.10.6	1.4.10.6