Scientific Linux Security Update : ruby on SL7.x x86_64 (20190806)

critical Nessus Plugin ID 128260
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Security Fix(es) :

- 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)

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?64ba4fae

Plugin Details

Severity: Critical

ID: 128260

File Name: sl_20190806_ruby_on_SL7_x.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/27/2019

Updated: 2/24/2020

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2018-8780

VPR

Risk Factor: Medium

Score: 6

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

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

CVSS v3

Risk Factor: Critical

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:ruby, p-cpe:/a:fermilab:scientific_linux:ruby-debuginfo, p-cpe:/a:fermilab:scientific_linux:ruby-devel, p-cpe:/a:fermilab:scientific_linux:ruby-doc, p-cpe:/a:fermilab:scientific_linux:ruby-irb, p-cpe:/a:fermilab:scientific_linux:ruby-libs, p-cpe:/a:fermilab:scientific_linux:ruby-tcltk, p-cpe:/a:fermilab:scientific_linux:rubygem-bigdecimal, p-cpe:/a:fermilab:scientific_linux:rubygem-io-console, p-cpe:/a:fermilab:scientific_linux:rubygem-json, p-cpe:/a:fermilab:scientific_linux:rubygem-minitest, p-cpe:/a:fermilab:scientific_linux:rubygem-psych, p-cpe:/a:fermilab:scientific_linux:rubygem-rake, p-cpe:/a:fermilab:scientific_linux:rubygem-rdoc, p-cpe:/a:fermilab:scientific_linux:rubygems, p-cpe:/a:fermilab:scientific_linux:rubygems-devel, x-cpe:/o:fermilab:scientific_linux

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/6/2019

Vulnerability Publication Date: 3/13/2018

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-2018-16396, CVE-2018-6914, CVE-2018-8777, CVE-2018-8778, CVE-2018-8779, CVE-2018-8780