Vulnerability identifier: #VU12068
Vulnerability risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco ASR 5000 Series
Hardware solutions /
Firmware
Vendor: Cisco Systems, Inc
Description
The vulnerability allow a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the peer-to-peer message processing functionality due to incorrect validation of peer-to-peer packet headers. A remote attacker can send a specially crafted peer-to-peer packet, trigger the SESSMGR process to restart unexpectedly, which can briefly impact traffic while the SESSMGR process restarts, and cause the service to crash.
Mitigation
Update to versions P2P_2.21, P2P_2.20.896, P2P_2.20.894, P2P_2.19.895, P2P_2.19.892 or P2P_2.19.
Vulnerable software versions
Cisco ASR 5000 Series: 20.3.0.66671 - P2P_2.16.879
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-pdng
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.