Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : ruby1.9.1, ruby2.0, ruby2.3 vulnerabilities (USN-3621-1)

High Nessus Plugin ID 108879

Synopsis

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

Description

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.

Plugin Details

Severity: High

ID: 108879

File Name: ubuntu_USN-3621-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/04/06

Modified: 2018/08/31

Dependencies: 12634

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.5

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

CVSSv3

Base Score: 9.8

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

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:libruby2.3, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.1, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.3, p-cpe:/a:canonical:ubuntu_linux:ruby2.0, p-cpe:/a:canonical:ubuntu_linux:ruby2.3, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:17.10

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

Patch Publication Date: 2018/04/05

Reference Information

CVE: CVE-2018-1000073, CVE-2018-1000074, CVE-2018-1000075, CVE-2018-1000076, CVE-2018-1000077, CVE-2018-1000078, CVE-2018-1000079

USN: 3621-1