Detections
Analytics
RHEL 7 : ruby (RHSA-2020:2839)
high Nessus Plugin ID 138161
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Synopsis
The remote Red Hat host is missing a security update for ruby.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2839 advisory.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: Tainted flags are not propagated in Array#pack and String#unpack with some directives (CVE-2018-16396)
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.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL ruby package based on the guidance in RHSA-2020:2839.See Also
http://www.nessus.org/u?d0398ec0
https://access.redhat.com/security/updates/classification/#moderate
Plugin Details
Severity: High
ID: 138161
File Name: redhat-RHSA-2020-2839.nasl
Version: 1.9
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 7/7/2020
Updated: 6/4/2024
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-2018-16396
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/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:redhat:enterprise_linux:rubygem-io-console, p-cpe:/a:redhat:enterprise_linux:ruby-irb, p-cpe:/a:redhat:enterprise_linux:ruby-libs, cpe:/o:redhat:rhel_eus:7.6, p-cpe:/a:redhat:enterprise_linux:rubygem-psych, p-cpe:/a:redhat:enterprise_linux:ruby-tcltk, p-cpe:/a:redhat:enterprise_linux:rubygem-minitest, p-cpe:/a:redhat:enterprise_linux:rubygem-rake, p-cpe:/a:redhat:enterprise_linux:rubygem-bigdecimal, p-cpe:/a:redhat:enterprise_linux:rubygems-devel, p-cpe:/a:redhat:enterprise_linux:rubygem-json, p-cpe:/a:redhat:enterprise_linux:rubygem-rdoc, 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:rubygems
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: 7/7/2020
Vulnerability Publication Date: 10/25/2018
Reference Information
CVE: CVE-2018-16396
BID: 105955