CVE-2019-1814

CVSS V2 Medium 5 CVSS V3 High 8.6
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.
Overview
  • CVE ID
  • CVE-2019-1814
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-05-16T00:29:00
  • Last Modified Date
  • 2020-10-16T15:30:22
Weakness Enumerations
CWE URL
CWE-770 http://cwe.mitre.org/data/definitions/770.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:sf302-08pp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf302-08pp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf302-08mpp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf302-08mpp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-10pp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-10pp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-10mpp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-10mpp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf300-24pp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf300-24pp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf300-48pp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf300-48pp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-28pp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-28pp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf300-08_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf300-08:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf300-48p_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf300-48p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-10mp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-10mp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-10p_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-10p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-10_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-10:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-28p_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-28p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf300-24p_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf300-24p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf302-08mp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf302-08mp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-28_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-28:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf300-48_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf300-48:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-20_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-20:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf302-08p_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf302-08p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-52_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-52:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf300-24_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf300-24:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf302-08_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf302-08:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sf300-24mp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sf300-24mp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-10sfp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-10sfp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-28mp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-28mp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-52p_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-52p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:sg300-52mp_firmware:*:*:*:*:*:*:*:* 1 OR 1.4.10.6
cpe:2.3:h:cisco:sg300-52mp:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 8.6
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-sb300sms-dhcp Vendor Advisory
http://www.securityfocus.com/bid/108344 Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-1814
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1814
History
Created Old Value New Value Data Type Notes
2022-05-10 17:07:27 Added to TrackCVE
2022-12-03 20:44:54 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-03 20:44:54 2019-05-16T00:29Z 2019-05-16T00:29:00 CVE Published Date updated
2022-12-03 20:44:54 2020-10-16T15:30:22 CVE Modified Date updated
2022-12-03 20:44:54 Analyzed Vulnerability Status updated