Ubuntu 12.04 LTS / 14.04 LTS / 14.10 : libssh vulnerability (USN-2478-1)

Medium Nessus Plugin ID 80853


The remote Ubuntu host is missing a security-related patch.


It was discovered that libssh incorrectly handled certain kexinit packets. A remote attacker could possibly use this issue to cause libssh to crash, resulting in a denial of service.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected libssh-4 package.

Plugin Details

Severity: Medium

ID: 80853

File Name: ubuntu_USN-2478-1.nasl

Version: $Revision: 1.2 $

Type: local

Agent: unix

Published: 2015/01/20

Modified: 2016/05/24

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.3

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libssh-4, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:14.10

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/01/19

Reference Information

CVE: CVE-2014-8132

BID: 71865

USN: 2478-1