Debian DSA-2879-1 : libssh - security update

low Nessus Plugin ID 72994

Synopsis

The remote Debian host is missing a security-related update.

Description

It was discovered that libssh, a tiny C SSH library, did not reset the state of the PRNG after accepting a connection. A server mode application that forks itself to handle incoming connections could see its children sharing the same PRNG state, resulting in a cryptographic weakness and possibly the recovery of the private key.

Solution

Upgrade the libssh packages.

For the oldstable distribution (squeeze), this problem has been fixed in version 0.4.5-3+squeeze2.

For the stable distribution (wheezy), this problem has been fixed in version 0.5.4-1+deb7u1.

See Also

https://packages.debian.org/source/squeeze/libssh

https://packages.debian.org/source/wheezy/libssh

https://www.debian.org/security/2014/dsa-2879

Plugin Details

Severity: Low

ID: 72994

File Name: debian_DSA-2879.nasl

Version: 1.7

Type: local

Agent: unix

Published: 3/14/2014

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.7

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libssh, cpe:/o:debian:debian_linux:6.0, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/13/2014

Reference Information

CVE: CVE-2014-0017

BID: 63445, 63888, 63890, 63931, 63983, 64111, 65963

DSA: 2879