PT-2017-55: Denial of Service in Suricata Vulnerable software Suricata Version: 3.x Link: https://oisf.net/ Severity level Severity level: High Impact: Denial of Service Access Vector: Remote CVSS v3: Base Score: 7.5 Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVE: CVE-2017-15377 Vulnerability description The specialists of the Positive Research center have detected a Denial of Service vulnerability in Suricata. Vulnerability in DetectEngineContentInspection in Suricata allows attackers to trigger lots of redundant checks on the content of crafted network traffic resulting in a denial of service condition. How to fix Update your software up to the latest version Advisory status 13.10.2017 - Vendor gets vulnerability details 18.10.2017 - Vendor releases fixed version and details 27.12.2017 - Public disclosure Credits The vulnerability was detected by Kirill Shipulin, Positive Research Center (Positive Technologies Company) References http://en.securitylab.ru/lab/PT-2017-55 https://redmine.openinfosecfoundation.org/issues/2231 Reports on the vulnerabilities previously discovered by Positive Research: https://www.ptsecurity.com/ http://en.securitylab.ru/lab/ About Positive Technologies Positive Technologies is a leading provider of vulnerability assessment, compliance management and threat analysis solutions to more than 1,000 global enterprise clients. Our solutions work seamlessly across your entire business: securing applications in development; assessing your network and application vulnerabilities; assuring compliance with regulatory requirements; and blocking real-time attacks. Our commitment to clients and research has earned Positive Technologies a reputation as one of the foremost authorities on SCADA, Banking, Telecom, Web Application and ERP security, and distinction as the #1 fastest growing Security and Vulnerability Management firm in 2012, as shown in an IDC report*. To learn more about Positive Technologies please visit www.ptsecurity.com *Source: IDC Worldwide Security and Vulnerability Management 2013-2017 Forecast and 2012 Vendor Shares, doc #242465, August 2013. Based on year-over-year revenue growth in 2012 for vendors with revenues of $20M+
