Rapid7 Vulnerability & Exploit Database

Apache HTTPD: mod_http2: denial of service by thread starvation (CVE-2016-1546)

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

Apache HTTPD: mod_http2: denial of service by thread starvation (CVE-2016-1546)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
05/16/2016
Created
07/25/2018
Added
05/16/2016
Modified
01/13/2022

Description

By manipulating the flow control windows on streams, a client was able to block server threads for long times, causing starvation of worker threads. Connections could still be opened, but no streams where processed for these. This issue affected HTTP/2 support in 2.4.17 and 2.4.18.

Solution(s)

  • apache-httpd-upgrade-2_4_20

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

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

;