A ruby2.7 security update has been released for Debian GNU/Linux 9 LTS to address several vulnerabilities.
DSA 5067-1: ruby2.7 security update
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Debian Security Advisory DSA-5067-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
February 03, 2022 https://www.debian.org/security/faq
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Package : ruby2.7
CVE ID : CVE-2021-41816 CVE-2021-41817 CVE-2021-41819
Several vulnerabilities have been discovered in the interpreter for
the Ruby language and the Rubygems included, which may result on
result in information disclosure or denial of service.
For the stable distribution (bullseye), these problems have been fixed in
version 2.7.4-1+deb11u1.
We recommend that you upgrade your ruby2.7 packages.
For the detailed security status of ruby2.7 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/ruby2.7
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
