ESB-2018.2187 - [Debian] openssl: Multiple vulnerabilities 2018-07-30

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2187
                          openssl security update
                               30 July 2018

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

Product:           openssl
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Access Privileged Data -- Existing Account            
                   Denial of Service      -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0737 CVE-2018-0732 

Reference:         ESB-2018.1939
                   ESB-2018.1870
                   ESB-2018.1758
                   ESB-2018.1231
                   ESB-2018.1173

Original Bulletin: 
   https://security-tracker.debian.org/tracker/DLA-1449-1

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Package        : openssl
Version        : 1.0.1t-1+deb8u9
CVE ID         : CVE-2018-0732 CVE-2018-0737
Debian Bug     : 895844

Two issues were discovered in OpenSSL, the Secure Sockets Layer toolkit.

CVE-2018-0732

    Denial of service by a malicious server that sends a very large
    prime value to the client during TLS handshake.

CVE-2018-0737

    Alejandro Cabrera Aldaya, Billy Brumley, Cesar Pereida Garcia and
    Luis Manuel Alvarez Tapia discovered that the OpenSSL RSA Key
    generation algorithm has been shown to be vulnerable to a cache
    timing side channel attack. An attacker with sufficient access to
    mount cache timing attacks during the RSA key generation process
    could recover the private key.

For Debian 8 "Jessie", these problems have been fixed in version
1.0.1t-1+deb8u9.

We recommend that you upgrade your openssl packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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