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HTTP Request Smuggling Affecting ruby2.3 package, versions <2.3.3-1+deb9u9

0.0
high

Snyk CVSS

    Attack Complexity Low
    Integrity High

    Threat Intelligence

    EPSS 0.3% (70th percentile)
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NVD
7.5 high
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SUSE
6.3 medium
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIAN9-RUBY23-1014542
  • published 30 Sep 2020
  • disclosed 6 Oct 2020
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Introduced: 30 Sep 2020

CVE-2020-25613 Open this link in a new tab
CWE-444 Open this link in a new tab

How to fix?

Upgrade Debian:9 ruby2.3 to version 2.3.3-1+deb9u9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby2.3 package and not the ruby2.3 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.

References