RHEL 6 / 7 : rh-ruby23-ruby (RHSA-2018:3729)

critical Nessus Plugin ID 194048

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3729 advisory.

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.

The following packages have been upgraded to a later upstream version: rh-ruby23-ruby (2.3.8), rh- ruby23-rubygems (2.5.2.3). (BZ#1650591)

Security Fix(es):

* ruby: OpenSSL::X509::Name equality check does not work correctly (CVE-2018-16395)

* ruby: HTTP response splitting in WEBrick (CVE-2017-17742)

* ruby: DoS by large request in WEBrick (CVE-2018-8777)

* ruby: Buffer under-read in String#unpack (CVE-2018-8778)

* ruby: Unintentional directory traversal by poisoned NULL byte in Dir (CVE-2018-8780)

* ruby: Tainted flags are not propagated in Array#pack and String#unpack with some directives (CVE-2018-16396)

* rubygems: Path traversal when writing to a symlinked basedir outside of the root (CVE-2018-1000073)

* rubygems: Unsafe Object Deserialization Vulnerability in gem owner allowing arbitrary code execution on specially crafted YAML (CVE-2018-1000074)

* rubygems: Improper verification of signatures in tarball allows to install mis-signed gem (CVE-2018-1000076)

* rubygems: Missing URL validation on spec home attribute allows malicious gem to set an invalid homepage URL (CVE-2018-1000077)

* rubygems: XSS vulnerability in homepage attribute when displayed via gem server (CVE-2018-1000078)

* rubygems: Path traversal issue during gem installation allows to write to arbitrary filesystem locations (CVE-2018-1000079)

* ruby: Unintentional file and directory creation with directory traversal in tempfile and tmpdir (CVE-2018-6914)

* ruby: Unintentional socket creation by poisoned NULL byte in UNIXServer and UNIXSocket (CVE-2018-8779)

* rubygems: Infinite loop vulnerability due to negative size in tar header causes Denial of Service (CVE-2018-1000075)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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.

Plugin Details

Severity: Critical

ID: 194048

File Name: redhat-RHSA-2018-3729.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 4/27/2024

Updated: 11/5/2024

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: 5.9

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2018-8780

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS Score Source: CVE-2018-16395

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-net-telnet, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-rake, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-ruby-tcltk, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-ruby-doc, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-psych, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-ruby-irb, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-io-console, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-json, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-ruby-libs, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-rdoc, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-power_assert, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-bigdecimal, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygems-devel, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-minitest, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygems, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-ruby, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-did_you_mean, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-rubygem-test-unit, p-cpe:/a:redhat:enterprise_linux:rh-ruby23-ruby-devel

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/29/2018

Vulnerability Publication Date: 2/26/2018

Reference Information

CVE: CVE-2017-17742, CVE-2018-1000073, CVE-2018-1000074, CVE-2018-1000075, CVE-2018-1000076, CVE-2018-1000077, CVE-2018-1000078, CVE-2018-1000079, CVE-2018-16395, CVE-2018-16396, CVE-2018-6914, CVE-2018-8777, CVE-2018-8778, CVE-2018-8779, CVE-2018-8780

CWE: 113, 20, 22, 295, 347, 400, 502, 626, 79, 835

RHSA: 2018:3729

Detections

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