Oracle Linux 8 : ruby:2.7 (ELSA-2021-2584)

high Nessus Plugin ID 151450


New! Plugin Severity Now Using CVSS v3

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


The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-2584 advisory.

- An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack. (CVE-2020-25613)

- The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1 does not properly address XML round-trip issues. An incorrect document can be produced after parsing and serializing. (CVE-2021-28965)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Update the affected packages.

See Also

Plugin Details

Severity: High

ID: 151450

File Name: oraclelinux_ELSA-2021-2584.nasl

Version: 1.2

Type: local

Agent: unix

Published: 7/7/2021

Updated: 7/7/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-28965


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:ruby, p-cpe:/a:oracle:linux:ruby-default-gems, p-cpe:/a:oracle:linux:ruby-devel, p-cpe:/a:oracle:linux:ruby-doc, p-cpe:/a:oracle:linux:ruby-libs, p-cpe:/a:oracle:linux:rubygem-abrt, p-cpe:/a:oracle:linux:rubygem-abrt-doc, p-cpe:/a:oracle:linux:rubygem-bigdecimal, p-cpe:/a:oracle:linux:rubygem-bson, p-cpe:/a:oracle:linux:rubygem-bson-doc, p-cpe:/a:oracle:linux:rubygem-bundler, p-cpe:/a:oracle:linux:rubygem-io-console, p-cpe:/a:oracle:linux:rubygem-irb, p-cpe:/a:oracle:linux:rubygem-json, p-cpe:/a:oracle:linux:rubygem-minitest, p-cpe:/a:oracle:linux:rubygem-mongo, p-cpe:/a:oracle:linux:rubygem-mongo-doc, p-cpe:/a:oracle:linux:rubygem-mysql2, p-cpe:/a:oracle:linux:rubygem-mysql2-doc, p-cpe:/a:oracle:linux:rubygem-net-telnet, p-cpe:/a:oracle:linux:rubygem-openssl, p-cpe:/a:oracle:linux:rubygem-pg, p-cpe:/a:oracle:linux:rubygem-pg-doc, p-cpe:/a:oracle:linux:rubygem-power_assert, p-cpe:/a:oracle:linux:rubygem-psych, p-cpe:/a:oracle:linux:rubygem-rake, p-cpe:/a:oracle:linux:rubygem-rdoc, p-cpe:/a:oracle:linux:rubygem-test-unit, p-cpe:/a:oracle:linux:rubygem-xmlrpc, p-cpe:/a:oracle:linux:rubygems, p-cpe:/a:oracle:linux:rubygems-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/7/2021

Vulnerability Publication Date: 10/6/2020

Reference Information

CVE: CVE-2020-25613, CVE-2021-28965