ESB-2017.2155 - [UNIX/Linux][Debian] libgcrypt: Access privileged data - Console/physical 2017-08-30

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2155
                        libgcrypt20 security update
                              30 August 2017

===========================================================================

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

Product:           libgcrypt
Publisher:         Debian
Operating System:  Debian GNU/Linux 9
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Access Privileged Data -- Console/Physical
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-0379  

Original Bulletin: 
   http://www.debian.org/security/2017/dsa-3959

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running libgcrypt20 check for an updated version of the software for
         their operating system.

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Debian Security Advisory DSA-3959-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
August 29, 2017                       https://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : libgcrypt20
CVE ID         : CVE-2017-0379
Debian Bug     : 873383

Daniel Genkin, Luke Valenta and Yuval Yarom discovered that Libgcrypt
is prone to a local side-channel attack against the ECDH encryption with
Curve25519, allowing recovery of the private key.

See https://eprint.iacr.org/2017/806 for details.

For the stable distribution (stretch), this problem has been fixed in
version 1.7.6-2+deb9u2.

For the unstable distribution (sid), this problem has been fixed in
version 1.7.9-1.

We recommend that you upgrade your libgcrypt20 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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