Improper input validation in Cisco Asr 5000 Series Software
CVE-2018-0256
A vulnerability in the peer-to-peer message processing functionality of Cisco Packet Data Network Gateway could allow an unauthenticated, remote attacker to cause the Session Manager (SESSMGR) process on an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect validation of peer-to-peer packet headers. An attacker could exploit this vulnerability by sending a crafted peer-to-peer packet through an affected device. A successful exploit could allow the attacker to cause the SESSMGR process on the affected device to restart unexpectedly, which could briefly impact traffic while the SESSMGR process restarts and result in a DoS condition. Cisco Bug IDs: CSCvg88786.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.015 (73.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.
Affected products
- Cisco Asr_5000_series_software — versions 20.3.0.66671, p2p_2.16.879
- N/a Cisco Packet Data Network Gateway — versions Cisco Packet Data Network Gateway
Weakness classification (CWE)
References
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-0256?
- CVE-2018-0256 is a medium-severity vulnerability in Cisco Asr 5000 Series Software, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2018-04-19.
- How severe is CVE-2018-0256?
- Medium severity. CVSS v3 base score is 5.8 out of 10.