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Sicherheit: Preisgabe von Informationen in libssh2
Aktuelle Meldungen Distributionen
Name: Preisgabe von Informationen in libssh2
ID: DSA-3487-1
Distribution: Debian
Plattformen: Debian wheezy, Debian jessie
Datum: Di, 23. Februar 2016, 22:40
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0787

Originalnachricht

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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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