Rapid7 Vulnerability & Exploit Database

Centos Linux: CVE-2019-20637: Moderate: varnish:6 security, bug fix, and enhancement update (CESA-2020:4756)

Back to Search

Centos Linux: CVE-2019-20637: Moderate: varnish:6 security, bug fix, and enhancement update (CESA-2020:4756)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
04/08/2020
Created
11/06/2020
Added
11/05/2020
Modified
03/03/2021

Description

An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the connection workspace, such as data structures associated with previous requests within this connection or VCL-related temporary headers.

Solution(s)

  • centos-upgrade-varnish
  • centos-upgrade-varnish-devel
  • centos-upgrade-varnish-docs
  • centos-upgrade-varnish-modules
  • centos-upgrade-varnish-modules-debuginfo
  • centos-upgrade-varnish-modules-debugsource

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

;