Ubuntu 12.04 LTS / 12.10 / 13.04 : nova vulnerabilities (USN-2000-1)

medium Nessus Plugin ID 70579

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Synopsis

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

Description

It was discovered that Nova did not properly enforce the is_public property when determining flavor access. An authenticated attacker could exploit this to obtain sensitive information in private flavors.
This issue only affected Ubuntu 12.10 and 13.10. (CVE-2013-2256, CVE-2013-4278)

Grant Murphy discovered that Nova would allow XML entity processing. A remote unauthenticated attacker could exploit this using the Nova API to cause a denial of service via resource exhaustion. This issue only affected Ubuntu 13.10. (CVE-2013-4179)

Vishvananda Ishaya discovered that Nova inefficiently handled network security group updates when Nova was configured to use nova-network.
An authenticated attacker could exploit this to cause a denial of service. (CVE-2013-4185)

Jaroslav Henner discovered that Nova did not properly handle certain inputs to the instance console when Nova was configured to use Apache Qpid. An authenticated attacker could exploit this to cause a denial of service on the compute node running the instance. By default, Ubuntu uses RabbitMQ instead of Qpid. (CVE-2013-4261).

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.

Solution

Update the affected python-nova package.

Plugin Details

Severity: Medium

ID: 70579

File Name: ubuntu_USN-2000-1.nasl

Version: 1.7

Type: local

Agent: unix

Family: Ubuntu Local Security Checks

Published: 10/24/2013

Updated: 9/19/2019

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:13.04, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python-nova, cpe:/o:canonical:ubuntu_linux:12.10

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/23/2013

Vulnerability Publication Date: 9/16/2013

Reference Information

CVE: CVE-2013-2256, CVE-2013-4179, CVE-2013-4185, CVE-2013-4261, CVE-2013-4278

BID: 61637, 61639, 61692, 62016, 62200

USN: 2000-1

Detections

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