ESB-2017.2277 - [Linux][Debian] mbedtls: Provide misleading information - Remote with user interaction 2017-09-11

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2277
                          mbedtls security update
                             11 September 2017

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

Product:           mbedtls
Publisher:         Debian
Operating System:  Debian GNU/Linux 9
                   Linux variants
Impact/Access:     Provide Misleading Information -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-14032  

Original Bulletin: 
   http://www.debian.org/security/2017/dsa-3967

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running mbedtls check for an updated version of the software for 
         their operating system.

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Debian Security Advisory DSA-3967-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
September 08, 2017                    https://www.debian.org/security/faq
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Package        : mbedtls
CVE ID         : CVE-2017-14032
Debian Bug     : 873557

An authentication bypass vulnerability was discovered in mbed TLS, a
lightweight crypto and SSL/TLS library, when the authentication mode is
configured as 'optional'. A remote attacker can take advantage of this
flaw to mount a man-in-the-middle attack and impersonate an intended
peer via an X.509 certificate chain with many intermediates.

For the stable distribution (stretch), this problem has been fixed in
version 2.4.2-1+deb9u1.

For the testing distribution (buster), this problem has been fixed
in version 2.6.0-1.

For the unstable distribution (sid), this problem has been fixed in
version 2.6.0-1.

We recommend that you upgrade your mbedtls packages.

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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