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Sicherheit: Zwei Probleme in libssh
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in libssh
ID: MDVSA-2015:086
Distribution: Mandriva
Plattformen: Mandriva Business Server 2.0
Datum: Sa, 28. März 2015, 11:01
Referenzen: http://advisories.mageia.org/MGASA-2014-0119.html
http://advisories.mageia.org/MGASA-2015-0014.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0017
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8132

Originalnachricht

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2015:086
http://www.mandriva.com/en/support/security/
_______________________________________________________________________

Package : libssh
Date : March 28, 2015
Affected: Business Server 2.0
_______________________________________________________________________

Problem Description:

Updated libssh packages fix security vulnerabilities:

When using libssh before 0.6.3, a libssh-based server, when accepting
a new connection, forks and the child process handles the request. The
RAND_bytes() function of openssl doesn't reset its state after the
fork, but simply adds the current process id (getpid) to the PRNG
state, which is not guaranteed to be unique. The most important
consequence is that servers using EC (ECDSA) or DSA certificates may
under certain conditions leak their private key (CVE-2014-0017).

Double free vulnerability in the ssh_packet_kexinit function in kex.c
in libssh 0.5.x and 0.6.x before 0.6.4 allows remote attackers to
cause a denial of service via a crafted kexinit packet (CVE-2014-8132).
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0017
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8132
http://advisories.mageia.org/MGASA-2014-0119.html
http://advisories.mageia.org/MGASA-2015-0014.html
_______________________________________________________________________

Updated Packages:

Mandriva Business Server 2/X86_64:
a08812e6aa98461ceab65992eb628853
mbs2/x86_64/lib64ssh4-0.5.5-2.1.mbs2.x86_64.rpm
b647e4b792d2f530e13be40be19d2807
mbs2/x86_64/lib64ssh-devel-0.5.5-2.1.mbs2.x86_64.rpm
97a766a7cdd74f26e6a3b78d50c7afd3 mbs2/SRPMS/libssh-0.5.5-2.1.mbs2.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/en/support/security/advisories/

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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_______________________________________________________
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Go to http://store.mandriva.com
_______________________________________________________


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