Detections
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Ubuntu 14.04 LTS : Ruby vulnerabilities (USN-2397-1)

high Nessus Plugin ID 78869

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2397-1 advisory.

 Will Wood discovered that Ruby incorrectly handled the encodes() function. An attacker could possibly use this issue to cause Ruby to crash, resulting in a denial of service, or possibly execute arbitrary code.
 The default compiler options for affected releases should reduce the vulnerability to a denial of service.
 (CVE-2014-4975)

 Willis Vandevanter discovered that Ruby incorrectly handled XML entity expansion. An attacker could use this flaw to cause Ruby to consume large amounts of resources, resulting in a denial of service.
 (CVE-2014-8080)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-2397-1

Plugin Details

Severity: High

ID: 78869

File Name: ubuntu_USN-2397-1.nasl

Version: 1.15

Type: local

Agent: unix

Published: 11/5/2014

Updated: 8/27/2024

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: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2014-4975

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2014-8080

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.3, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.1-examples, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.1-full, p-cpe:/a:canonical:ubuntu_linux:ri1.9.1, p-cpe:/a:canonical:ubuntu_linux:ruby2.0, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.1-dev, p-cpe:/a:canonical:ubuntu_linux:ruby2.0-tcltk, p-cpe:/a:canonical:ubuntu_linux:ruby2.0-dev, p-cpe:/a:canonical:ubuntu_linux:libruby1.9.1, p-cpe:/a:canonical:ubuntu_linux:libtcltk-ruby1.9.1, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.1, p-cpe:/a:canonical:ubuntu_linux:libruby2.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/4/2014

Vulnerability Publication Date: 11/3/2014

Reference Information

CVE: CVE-2014-4975, CVE-2014-8080

USN: 2397-1