Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : ruby1.8, ruby1.9.1 vulnerability (USN-1780-1)

medium Nessus Plugin ID 65686

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Ben Murphy discovered that the Ruby REXML library incorrectly handled XML entity expansion. An attacker could use this flaw to cause Ruby to consume large amounts of memory, 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.

Solution

Update the affected packages.

See Also

https://usn.ubuntu.com/1780-1/

Plugin Details

Severity: Medium

ID: 65686

File Name: ubuntu_USN-1780-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 3/26/2013

Updated: 9/19/2019

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libruby1.8, p-cpe:/a:canonical:ubuntu_linux:libruby1.9.1, p-cpe:/a:canonical:ubuntu_linux:ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.1, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:11.10, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, 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: 3/25/2013

Vulnerability Publication Date: 4/9/2013

Reference Information

CVE: CVE-2013-1821

BID: 58141

USN: 1780-1