Denial of service in Cisco IOS XR - CVE-2017-12355
Published: November 29, 2017 / Updated: December 1, 2017
Vulnerability identifier: #VU9512
CSH Severity: Low
CVSS v4: 8.7 [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]
CVE-ID: CVE-2017-12355
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to DoS condition on the target system.
The vulnerability exists in the Local Packet Transport Services (LPTS) ingress frame-processing functionality of Cisco IOS XR Software due to incomplete LPTS frame validation. A remote attacker can send specially crafted XML requests to the management interface cause one of the LPTS processes to restart unexpectedly.
Successful exploitation of the vulnerability results in denial of service.
Affected software
Cisco IOS XR
How to mitigate CVE-2017-12355
The vulnerability is addressed in the following versions: 6.4.1.17, 6.3.15.1, 6.3.2.14, 6.2.3.2.