Rapid7 Vulnerability & Exploit Database

Alpine Linux: CVE-2018-20843: expat large number of colons in input makes parser consume high amount of resources, leading to DoS

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Alpine Linux: CVE-2018-20843: expat large number of colons in input makes parser consume high amount of resources, leading to DoS

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
06/24/2019
Created
07/03/2019
Added
07/03/2019
Modified
12/04/2019

Description

In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).

Solution(s)

  • alpine-linux-upgrade-expat

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;