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Reliance on Cookies without Validation and Integrity Checking Affecting ruby2.5 package, versions <2.5.5-3+deb10u4

0.0
high

Snyk CVSS

    Attack Complexity Low
    Integrity High

    Threat Intelligence

    EPSS 0.39% (74th percentile)
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NVD
7.5 high
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SUSE
6.5 medium
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIAN10-RUBY25-1933857
  • published 1 Dec 2021
  • disclosed 1 Jan 2022
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Introduced: 1 Dec 2021

CVE-2021-41819 Open this link in a new tab
CWE-565 Open this link in a new tab

How to fix?

Upgrade Debian:10 ruby2.5 to version 2.5.5-3+deb10u4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby2.5 package and not the ruby2.5 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem through 0.3.0 for Ruby.

References