CVEvulnerability

CVE-2019-20637

7.5 HIGH Published 2020-04-08 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-04-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-212

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.

Affected configurations

• varnish-cache varnish cache (>= 6.1.0 < 6.2.2) • varnish-cache varnish cache (>= 6.3.0 < 6.3.1) • varnish-software varnish cache (>= 6.0.0 < 6.0.5) • opensuse backports sle 15.0 • opensuse leap 15.1

Related

Weakness · CWE (1)

  • CWE-212 Improper Removal of Sensitive Information Before Storage or Transfer weakness

References