CVE-2019-1737: Cisco IOS and IOS XE Software IP Service Level Agreement Denial of Service Vulnerability
A vulnerability in the processing of IP Service Level Agreement (SLA) packets by Cisco IOS Software and Cisco IOS XE software could allow an unauthenticated, remote attacker to cause an interface wedge and an eventual denial of service (DoS) condition on the affected device. The vulnerability is due to improper socket resources handling in the IP SLA responder application code. An attacker could exploit this vulnerability by sending crafted IP SLA packets to an affected device. An exploit could allow the attacker to cause an interface to become wedged, resulting in an eventual denial of service (DoS) condition on the affected device.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2019-1737?
The severity of CVE-2019-1737 is classified as critical due to the potential for remote denial of service.
How do I fix CVE-2019-1737?
To fix CVE-2019-1737, update the affected Cisco IOS software to the latest version as specified in the Cisco advisory.
What devices are affected by CVE-2019-1737?
CVE-2019-1737 affects multiple versions of Cisco IOS and IOS XE across a wide range of Cisco devices.
What type of attack does CVE-2019-1737 allow?
CVE-2019-1737 allows an unauthenticated remote attacker to cause an interface wedge leading to a denial of service condition.
Is there a workaround for CVE-2019-1737?
There is no specific workaround available for CVE-2019-1737, so applying the recommended software updates is necessary.