SB2017032204 - Denial of service in Cisco IOS/IOS XE
Published: March 22, 2017
Security Bulletin ID
SB2017032204
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Denial of service (CVE-ID: CVE-2017-3864)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause DoS conditions on the target system.
The weakness exists due to an error when parsing malicious DHCP packet. A remote can sendspecially crafted DHCP packets and cause the affected device to reload.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.