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Ubuntu 14.04 LTS : Ruby regression (USN-3621-2)

high Nessus Plugin ID 109058

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Synopsis

The remote Ubuntu host is missing a security update.

Description

USN-3621-1 fixed vulnerabilities in Ruby. The update caused an issue due to an incomplete patch for CVE-2018-1000074. This update reverts the problematic patch pending further investigation.

We apologize for the inconvenience.

It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this to access sensitive information.
(CVE-2018-1000073)

It was discovered that Ruby incorrectly handled certain files. An attacker could possibly use this to execute arbitrary code.
(CVE-2018-1000074)

It was discovered that Ruby incorrectly handled certain files. An attacker could possibly use this to cause a denial of service.
(CVE-2018-1000075)

It was discovered that Ruby incorrectly handled certain crypto signatures. An attacker could possibly use this to execute arbitrary code. (CVE-2018-1000076)

It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this to execute arbitrary code.
(CVE-2018-1000077, CVE-2018-1000078, CVE-2018-1000079).

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://ubuntu.com/security/notices/USN-3621-2

Plugin Details

Severity: High

ID: 109058

File Name: ubuntu_USN-3621-2.nasl

Version: 1.8

Type: local

Agent: unix

Published: 4/16/2018

Updated: 10/20/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2018-1000074

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/13/2018

Vulnerability Publication Date: 3/13/2018

Reference Information

CVE: CVE-2018-1000074

USN: 3621-2