ESB-2018.3444 - [Debian] ruby2.3: Multiple vulnerabilities 2018-11-05

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3444
                          ruby2.3 security update
                              5 November 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           ruby2.3
Publisher:         Debian
Operating System:  Debian GNU/Linux 9
Impact/Access:     Modify Arbitrary Files         -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
                   Reduced Security               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-16396 CVE-2018-16395 

Reference:         ESB-2018.3309

Original Bulletin: 
   http://www.debian.org/security/2018/dsa-4332

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Debian Security Advisory DSA-4332-1                   security@debian.org
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/

Mailing list: debian-security-announce@lists.debian.org
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