Detections
Analytics

Oracle Linux 9 : ruby:3.3 (ELSA-2026-33576)

high Nessus Plugin ID 324933

Synopsis

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

Description

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-33576 advisory.

 - Fix DoS via crafted IMAP responses in net-imap. (CVE-2026-42245) Resolves: RHEL-181693
 - Fix information disclosure via MITM attack bypassing TLS in net-imap.
 (CVE-2026-42246) Resolves: RHEL-181779
 - Fix command injection via Symbol arguments in net-imap. (CVE-2026-42258) Resolves: RHEL-181811

 rubygem-mysql2

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-33576.html

Plugin Details

Severity: High

ID: 324933

File Name: oraclelinux_ELSA-2026-33576.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/3/2026

Updated: 7/3/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.64

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-42246

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

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

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

CVSS v4

Risk Factor: High

Base Score: 7.6

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:rubygem-json, p-cpe:/a:oracle:linux:rubygems, p-cpe:/a:oracle:linux:rubygem-psych, p-cpe:/a:oracle:linux:rubygem-pg, p-cpe:/a:oracle:linux:rubygem-io-console, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:rubygem-typeprof, p-cpe:/a:oracle:linux:rubygem-bigdecimal, p-cpe:/a:oracle:linux:rubygem-racc, p-cpe:/a:oracle:linux:rubygem-rdoc, p-cpe:/a:oracle:linux:rubygem-irb, p-cpe:/a:oracle:linux:rubygem-power_assert, p-cpe:/a:oracle:linux:rubygems-devel, p-cpe:/a:oracle:linux:rubygem-bundler, p-cpe:/a:oracle:linux:rubygem-mysql2, p-cpe:/a:oracle:linux:rubygem-pg-doc, p-cpe:/a:oracle:linux:rubygem-rbs, p-cpe:/a:oracle:linux:rubygem-mysql2-doc, p-cpe:/a:oracle:linux:ruby-doc, p-cpe:/a:oracle:linux:rubygem-rexml, p-cpe:/a:oracle:linux:ruby, p-cpe:/a:oracle:linux:rubygem-rake, p-cpe:/a:oracle:linux:ruby-default-gems, p-cpe:/a:oracle:linux:ruby-bundled-gems, p-cpe:/a:oracle:linux:rubygem-minitest, p-cpe:/a:oracle:linux:ruby-devel, p-cpe:/a:oracle:linux:ruby-libs, p-cpe:/a:oracle:linux:rubygem-test-unit, p-cpe:/a:oracle:linux:rubygem-rss

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/2/2026

Vulnerability Publication Date: 5/4/2026

Reference Information

CVE: CVE-2026-42245, CVE-2026-42246, CVE-2026-42258

IAVB: 2026-B-0117-S