Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : openssh vulnerabilities (USN-2869-1)

Medium Nessus Plugin ID 87939


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


It was discovered that the OpenSSH client experimental support for resuming connections contained multiple security issues. A malicious server could use this issue to leak client memory to the server, including private client user keys.

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 openssh-client package.

Plugin Details

Severity: Medium

ID: 87939

File Name: ubuntu_USN-2869-1.nasl

Version: $Revision: 2.8 $

Type: local

Agent: unix

Published: 2016/01/15

Modified: 2016/12/01

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.6

Temporal Score: 3.4

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

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


Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:openssh-client, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:15.04, cpe:/o:canonical:ubuntu_linux:15.10

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: 2016/01/14

Reference Information

CVE: CVE-2016-0777, CVE-2016-0778

OSVDB: 132883, 132884

USN: 2869-1