Updated ruby-sprockets packages has been released for Debian GNU/Linux 9 to address a path traversal flaw

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Debian Security Advisory DSA-4242-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
July 09, 2018 https://www.debian.org/security/faq
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Package : ruby-sprockets
CVE ID : CVE-2018-3760
Debian Bug : 901913

Orange Tsai discovered a path traversal flaw in ruby-sprockets, a
Rack-based asset packaging system. A remote attacker can take advantage
of this flaw to read arbitrary files outside an application's root
directory via specially crafted requests, when the Sprockets server is
used in production.

For the stable distribution (stretch), this problem has been fixed in
version 3.7.0-1+deb9u1.

We recommend that you upgrade your ruby-sprockets packages.

For the detailed security status of ruby-sprockets please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/ruby-sprockets

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/

  Ruby-Sprockets Security Update for Debian 9