Several vulnerabilities have been discovered in the interpreter for the Ruby language. The Common Vulnerabilities and Exposures project identifies the following problems:

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Debian Security Advisory DSA-4332-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                     Salvatore Bonaccorso
November 03, 2018                     https://www.debian.org/security/faq
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Package        : ruby2.3
CVE ID         : CVE-2018-16395 CVE-2018-16396

Several vulnerabilities have been discovered in the interpreter for the
Ruby language. The Common Vulnerabilities and Exposures project
identifies the following problems:

CVE-2018-16395

    Tyler Eckstein reported that the equality check of
    OpenSSL::X509::Name could return true for non-equal objects. If a
    malicious X.509 certificate is passed to compare with an existing
    certificate, there is a possibility to be judged incorrectly that
    they are equal.

CVE-2018-16396

    Chris Seaton discovered that tainted flags are not propagated in
    Array#pack and String#unpack with some directives.

For the stable distribution (stretch), these problems have been fixed in
version 2.3.3-1+deb9u4.

We recommend that you upgrade your ruby2.3 packages.

For the detailed security status of ruby2.3 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/ruby2.3

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/

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