Detections
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Oracle Linux 8 : gnutls (ELSA-2026-20611)

critical Nessus Plugin ID 318383

Synopsis

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

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-20611 advisory.

 - Fix CVE-2026-33846 (DTLS fragment reassembly, High, heap overwrite)
 - Fix CVE-2026-42009 (DTLS fragment reassembly, High, undefined behaviour)
 - Fix CVE-2026-33845 (DTLS fragment reassembly, High, heap overread)
 - Fix CVE-2026-42010 (PSK authentication, High, authentication bypass)
 - Fix CVE-2026-3833 (Name constraints, Medium, name constraint bypass)
 - Fix CVE-2026-42011 (Name constraints, Medium, name constraint bypass)
 - Fix CVE-2026-42012 (CN fallback, Medium, certificate misuse)
 - Fix CVE-2026-42013 (CN fallback, Medium, certificate misuse)
 - Fix CVE-2026-42014 (PKCS#11 PIN change, Medium, use-after-free)
 - Fix CVE-2026-5260 (PKCS#11 RSA, Medium, heap overread)
 - Fix CVE-2026-42015 (PKCS#12 appending, Low, heap overwrite)

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-2026-20611.html

Plugin Details

Severity: Critical

ID: 318383

File Name: oraclelinux_ELSA-2026-20611.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/3/2026

Updated: 6/3/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-42010

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:oracle:linux:8:10:baseos_patch, p-cpe:/a:oracle:linux:gnutls-devel, p-cpe:/a:oracle:linux:gnutls-dane, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:gnutls-utils, p-cpe:/a:oracle:linux:gnutls-c%2b%2b, p-cpe:/a:oracle:linux:gnutls

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/27/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-33845, CVE-2026-33846, CVE-2026-3833, CVE-2026-42009, CVE-2026-42010, CVE-2026-42011, CVE-2026-42012, CVE-2026-42013, CVE-2026-42014, CVE-2026-42015, CVE-2026-5260

IAVA: 2026-A-0405