Out-of-bounds Read in Cisco Telepresence Video Communication Server
CVE-2018-0409
A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePresence Video Communication Server (VCS) and Expressway could allow an unauthenticated, remote attacker to cause a temporary service outage for all IM&P users, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious IPv4 or IPv6 packet to an affected device on TCP port 7400. An exploit could allow the attacker to overread a buffer, resulting in a crash and restart of the XCP Router service. Cisco Bug IDs: CSCvg97663, CSCvi55947.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.035 (89.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Cisco Telepresence Video Communication Server — versions x7.0.1, x7.2.4, x8.1
- Cisco Unified Communications Manager Im And Presence Service — versions 11.5\(1\), 11.5(1), 11.5
- Cisco Systems, Inc. Telepresence Video Communication Server (Vcs) And Expressway — versions unspecified
- Cisco Systems, Inc. Unified Communications Manager Im & Presence Service (Cucm Im&p) — versions unspecified
Weakness classification (CWE)
References
- www.securitytracker.com/id/1041534 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/105104 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815… (vendor-advisory, Vendor Advisory)
- www.securitytracker.com/id/1041533 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/105102 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-0409?
- CVE-2018-0409 is a high-severity vulnerability in Cisco Telepresence Video Communication Server, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-08-15.
- How severe is CVE-2018-0409?
- High severity. CVSS v3 base score is 7.5 out of 10.