Vulnerability Details : CVE-2018-0177
A vulnerability in the IP Version 4 (IPv4) processing code of Cisco IOS XE Software running on Cisco Catalyst 3850 and Cisco Catalyst 3650 Series Switches could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IPv4 packets. An attacker could exploit this vulnerability by sending specific IPv4 packets to an IPv4 address on an affected device. A successful exploit could allow the attacker to cause high CPU utilization, traceback messages, or a reload of the affected device that leads to a DoS condition. If the switch does not reboot when under attack, it would require manual intervention to reload the device. This vulnerability affects Cisco Catalyst 3850 and Cisco Catalyst 3650 Series Switches that are running Cisco IOS XE Software Release 16.1.1 or later, until the first fixed release, and are configured with an IPv4 address. Cisco Bug IDs: CSCvd80714.
Vulnerability category: Denial of service
Products affected by CVE-2018-0177
- cpe:2.3:o:cisco:ios_xe:denali-16.3.3:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:denali-16.3.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-0177
3.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-0177
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-0177
-
Assigned by: ykramarz@cisco.com (Secondary)
References for CVE-2018-0177
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ipv4
Cisco IOS XE Software for Cisco Catalyst Switches IPv4 Denial of Service VulnerabilityVendor Advisory
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http://www.securitytracker.com/id/1040588
Cisco Catalyst 3850 and 3650 Series Switches IPv4 Processing Flaw Lets Remote Users Consume Excessive CPU Resources on the Target System - SecurityTrackerThird Party Advisory;VDB Entry
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http://www.securityfocus.com/bid/103563
Cisco IOS XE Software for Cisco Catalyst Switches CVE-2018-0177 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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