Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Sf302-08Pp Firmware | < 1.4.10.6 |
| Cisco | Sf302-08Pp | - |
| Cisco | Sf302-08Mpp Firmware | < 1.4.10.6 |
| Cisco | Sf302-08Mpp | - |
| Cisco | Sg300-10Pp Firmware | < 1.4.10.6 |
| Cisco | Sg300-10Pp | - |
| Cisco | Sg300-10Mpp Firmware | < 1.4.10.6 |
| Cisco | Sg300-10Mpp | - |
| Cisco | Sf300-24Pp Firmware | < 1.4.10.6 |
| Cisco | Sf300-24Pp | - |
| Cisco | Sf300-48Pp Firmware | < 1.4.10.6 |
| Cisco | Sf300-48Pp | - |
| Cisco | Sg300-28Pp Firmware | < 1.4.10.6 |
| Cisco | Sg300-28Pp | - |
| Cisco | Sf300-08 Firmware | < 1.4.10.6 |
| Cisco | Sf300-08 | - |
| Cisco | Sf300-48P Firmware | < 1.4.10.6 |
| Cisco | Sf300-48P | - |
| Cisco | Sg300-10Mp Firmware | < 1.4.10.6 |
| Cisco | Sg300-10Mp | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/108344Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/108344Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2019-1814?
CVE-2019-1814 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 ...
How severe is CVE-2019-1814?
CVE-2019-1814 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1814?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Sf302-08Pp Firmware, Cisco Sf302-08Pp, Cisco Sf302-08Mpp Firmware, Cisco Sf302-08Mpp, Cisco Sg300-10Pp Firmware.