Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2016.0458
libssh2 security update
24 February 2016
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libssh2
Publisher: Debian
Operating System: Debian GNU/Linux 7
Debian GNU/Linux 8
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-0787
Original Bulletin:
http://www.debian.org/security/2016/dsa-3487
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running libssh2 check for an updated version of the software for
their operating system.
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Debian Security Advisory DSA-3487-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 23, 2016 https://www.debian.org/security/faq
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Package : libssh2
CVE ID : CVE-2016-0787
Debian Bug : 815662
Andreas Schneider reported that libssh2, a SSH2 client-side library,
passes the number of bytes to a function that expects number of bits
during the SSHv2 handshake when libssh2 is to get a suitable value for
'group order' in the Diffie-Hellman negotiation. This weakens
significantly the handshake security, potentially allowing an
eavesdropper with enough resources to decrypt or intercept SSH sessions.
For the oldstable distribution (wheezy), this problem has been fixed
in version 1.4.2-1.1+deb7u2.
For the stable distribution (jessie), this problem has been fixed in
version 1.4.3-4.1+deb8u1.
We recommend that you upgrade your libssh2 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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