RHEL 7 : ruby (RHSA-2020:2769)
high Nessus Plugin ID 137897
Language:
Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2769 advisory.- ruby: Tainted flags are not propagated in Array#pack and String#unpack with some directives (CVE-2018-16396)
- rubygems: Escape sequence injection vulnerability in verbose (CVE-2019-8321)
- rubygems: Escape sequence injection vulnerability in gem owner (CVE-2019-8322)
- rubygems: Escape sequence injection vulnerability in API response handling (CVE-2019-8323)
- rubygems: Installing a malicious gem may lead to arbitrary code execution (CVE-2019-8324)
- rubygems: Escape sequence injection vulnerability in errors (CVE-2019-8325)
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 affected packages.See Also
https://cwe.mitre.org/data/definitions/20.html
https://cwe.mitre.org/data/definitions/88.html
https://access.redhat.com/security/cve/CVE-2018-16396
https://access.redhat.com/security/cve/CVE-2019-8321
https://access.redhat.com/security/cve/CVE-2019-8322
https://access.redhat.com/security/cve/CVE-2019-8323
https://access.redhat.com/security/cve/CVE-2019-8324
https://access.redhat.com/security/cve/CVE-2019-8325
https://access.redhat.com/errata/RHSA-2020:2769
https://bugzilla.redhat.com/1643089
https://bugzilla.redhat.com/1692514
https://bugzilla.redhat.com/1692516
https://bugzilla.redhat.com/1692519
Plugin Details
Severity: High
ID: 137897
File Name: redhat-RHSA-2020-2769.nasl
Version: 1.6
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 6/30/2020
Updated: 10/12/2021
Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent
Risk Information
CVSS Score Source: CVE-2019-8324
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Temporal Vector: E:U/RL:OF/RC:C
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:rhel_aus:7.4, cpe:/o:redhat:rhel_e4s:7.4, cpe:/o:redhat:rhel_tus:7.4, 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: 6/30/2020
Vulnerability Publication Date: 10/25/2018
Reference Information
CVE: CVE-2018-16396, CVE-2019-8321, CVE-2019-8322, CVE-2019-8323, CVE-2019-8324, CVE-2019-8325
BID: 105955