Mandriva Linux Security Advisory : libssh (MDVSA-2015:086)
Medium Nessus Plugin ID 82339
SynopsisThe remote Mandriva Linux host is missing one or more security updates.
DescriptionUpdated 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).
SolutionUpdate the affected lib64ssh-devel and / or lib64ssh4 packages.