RHEL 7 : ruby (RHSA-2020:0663)

High Nessus Plugin ID 134261

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 5.9

Synopsis

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

Description

An update for ruby is now available for Red Hat Enterprise Linux 7.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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

Security Fix(es) :

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

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

* 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)

* 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, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

Update the affected packages.

See Also

https://cwe.mitre.org/data/definitions/20.html

https://cwe.mitre.org/data/definitions/22.html

https://cwe.mitre.org/data/definitions/79.html

https://cwe.mitre.org/data/definitions/347.html

https://cwe.mitre.org/data/definitions/400.html

https://cwe.mitre.org/data/definitions/502.html

https://cwe.mitre.org/data/definitions/626.html

https://cwe.mitre.org/data/definitions/835.html

https://access.redhat.com/security/cve/CVE-2018-8777

https://access.redhat.com/security/cve/CVE-2018-8780

https://access.redhat.com/security/cve/CVE-2018-1000073

https://access.redhat.com/security/cve/CVE-2018-1000074

https://access.redhat.com/security/cve/CVE-2018-1000075

https://access.redhat.com/security/cve/CVE-2018-1000076

https://access.redhat.com/security/cve/CVE-2018-1000077

https://access.redhat.com/security/cve/CVE-2018-1000078

https://access.redhat.com/security/cve/CVE-2018-1000079

https://access.redhat.com/errata/RHSA-2020:0663

https://bugzilla.redhat.com/1547418

https://bugzilla.redhat.com/1547419

https://bugzilla.redhat.com/1547420

https://bugzilla.redhat.com/1547421

https://bugzilla.redhat.com/1547422

https://bugzilla.redhat.com/1547425

https://bugzilla.redhat.com/1547426

https://bugzilla.redhat.com/1561949

https://bugzilla.redhat.com/1561950

Plugin Details

Severity: High

ID: 134261

File Name: redhat-RHSA-2020-0663.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2020/03/06

Updated: 2020/11/18

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS Score Source: CVE-2018-8780

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/o:redhat:rhel_aus:7.6, cpe:/o:redhat:rhel_aus:7.6::computenode, cpe:/o:redhat:rhel_aus:7.6::server, cpe:/o:redhat:rhel_e4s:7.6, cpe:/o:redhat:rhel_e4s:7.6::computenode, cpe:/o:redhat:rhel_e4s:7.6::server, cpe:/o:redhat:rhel_eus:7.6, cpe:/o:redhat:rhel_eus:7.6::computenode, cpe:/o:redhat:rhel_eus:7.6::server, cpe:/o:redhat:rhel_tus:7.6, cpe:/o:redhat:rhel_tus:7.6::computenode, cpe:/o:redhat:rhel_tus:7.6::server, p-cpe:/a:redhat:enterprise_linux:ruby, p-cpe:/a:redhat:enterprise_linux:ruby-devel, p-cpe:/a:redhat:enterprise_linux:ruby-doc, p-cpe:/a:redhat:enterprise_linux:ruby-irb, p-cpe:/a:redhat:enterprise_linux:ruby-libs, p-cpe:/a:redhat:enterprise_linux:ruby-tcltk, p-cpe:/a:redhat:enterprise_linux:rubygem-bigdecimal, p-cpe:/a:redhat:enterprise_linux:rubygem-io-console, p-cpe:/a:redhat:enterprise_linux:rubygem-json, p-cpe:/a:redhat:enterprise_linux:rubygem-minitest, p-cpe:/a:redhat:enterprise_linux:rubygem-psych, p-cpe:/a:redhat:enterprise_linux:rubygem-rake, p-cpe:/a:redhat:enterprise_linux:rubygem-rdoc, p-cpe:/a:redhat:enterprise_linux:rubygems, p-cpe:/a:redhat:enterprise_linux:rubygems-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: 2020/03/03

Vulnerability Publication Date: 2018/03/13

Reference Information

CVE: CVE-2018-1000073, CVE-2018-1000074, CVE-2018-1000075, CVE-2018-1000076, CVE-2018-1000077, CVE-2018-1000078, CVE-2018-1000079, CVE-2018-8777, CVE-2018-8780

BID: 103683, 103739

RHSA: 2020:0663

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