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Improper Input Validation Affecting varnish:6/varnish package, versions <0:6.0.6-2.module+el8.3.0+6843+b3b42fcc

Severity

 Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
5.79% (93rd percentile)

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  • Snyk IDSNYK-RHEL8-VARNISH-4853761
  • published26 Jul 2021
  • disclosed3 Sept 2019
Report a new vulnerability Found a mistake?

Introduced: 3 Sep 2019

CVE-2019-15892  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:8 varnish:6/varnish to version 0:6.0.6-2.module+el8.3.0+6843+b3b42fcc or higher.
This issue was patched in RHSA-2020:4756.

NVD Description

Note: Versions mentioned in the description apply only to the upstream varnish:6/varnish package and not the varnish:6/varnish package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An issue was discovered in Varnish Cache before 6.0.4 LTS, and 6.1.x and 6.2.x before 6.2.1. An HTTP/1 parsing failure allows a remote attacker to trigger an assert by sending crafted HTTP/1 requests. The assert will cause an automatic restart with a clean cache, which makes it a Denial of Service attack.

References