Improper Cross-boundary Removal of Sensitive Data Affecting varnish-modules package, versions <0:0.15.0-5.module+el8.3.0+179+20b582cc


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.48% (65th percentile)

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  • Snyk IDSNYK-ROCKY8-VARNISHMODULES-3295870
  • published3 Feb 2023
  • disclosed8 Apr 2020

Introduced: 8 Apr 2020

CVE-2019-20637  (opens in a new tab)
CWE-212  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 varnish-modules to version 0:0.15.0-5.module+el8.3.0+179+20b582cc or higher.
This issue was patched in RLSA-2020:4756.

NVD Description

Note: Versions mentioned in the description apply only to the upstream varnish-modules package and not the varnish-modules package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1