Ubuntu 14.04 LTS : nova vulnerability (USN-2325-1)

Medium Nessus Plugin ID 77325


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


Alex Gaynor discovered that OpenStack Nova would sometimes respond with variable times when comparing authentication tokens. If nova were configured to proxy metadata requests via Neutron, a remote authenticated attacker could exploit this to conduct timing attacks and ascertain configuration details of another instance.

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 python-nova package.

Plugin Details

Severity: Medium

ID: 77325

File Name: ubuntu_USN-2325-1.nasl

Version: $Revision: 1.3 $

Type: local

Agent: unix

Published: 2014/08/22

Modified: 2016/05/24

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 3.2

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:python-nova, cpe:/o:canonical:ubuntu_linux:14.04

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: 2014/08/21

Reference Information

CVE: CVE-2014-3517

OSVDB: 109235

USN: 2325-1