Ubuntu 13.10 : openssh vulnerability (USN-2014-1)

Medium Nessus Plugin ID 70798


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


Markus Friedl discovered that OpenSSH incorrectly handled memory when the AES-GCM cipher was used. A remote authenticated attacker could use this issue to execute arbitrary code as their user, possibly bypassing shell or command restrictions.

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-server package.

Plugin Details

Severity: Medium

ID: 70798

File Name: ubuntu_USN-2014-1.nasl

Version: $Revision: 1.6 $

Type: local

Agent: unix

Published: 2013/11/09

Modified: 2017/01/10

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6

Temporal Score: 4.4

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:openssh-server, cpe:/o:canonical:ubuntu_linux:13.10

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: 2013/11/08

Reference Information

CVE: CVE-2013-4548

BID: 63605

OSVDB: 99551

USN: 2014-1