Detections
Analytics

Oracle Linux 9 : krb5 (ELSA-2026-19357)

medium Nessus Plugin ID 322866

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-2026-19357 advisory.

 [1.21.1-10.0.1]
 - Fixed race condition in krb5_set_password() [Orabug: 33609767]

 [1.21.1-10]
 - Fix NegoEx parsing vulnerabilities (CVE-2026-40355, CVE-2026-40356) Resolves: RHEL-171590 RHEL-171596

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-2026-19357.html

Plugin Details

Severity: Medium

ID: 322866

File Name: oraclelinux_ELSA-2026-19357.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/26/2026

Updated: 6/26/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, tenable_cloud_security, tenable_self_hosted_container_security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2026-40356

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:krb5-pkinit, p-cpe:/a:oracle:linux:krb5-server-ldap, p-cpe:/a:oracle:linux:krb5-xrealmauthz, p-cpe:/a:oracle:linux:libkadm5, p-cpe:/a:oracle:linux:krb5-workstation, p-cpe:/a:oracle:linux:krb5-server, p-cpe:/a:oracle:linux:krb5-devel, cpe:/o:oracle:linux:9:8:baseos_patch, p-cpe:/a:oracle:linux:krb5-libs, cpe:/o:oracle:linux:9

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: 6/23/2026

Vulnerability Publication Date: 4/28/2026

Reference Information

CVE: CVE-2026-40355, CVE-2026-40356