Detections
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Oracle Linux 9 : freerdp (ELSA-2026-19349)

high Nessus Plugin ID 323105

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-2026-19349 advisory.

 - Lock appWindow to fix use-after-free in RAIL mode (CVE-2026-25952) Resolves: RHEL-159860
 - Fix double free in xf_rail_window_common cleanup (CVE-2026-26986)
 - Fix growth of preallocated buffers (CVE-2026-27951)
 - Fix heap-buffer-overflow in bitmap_cache_put (CVE-2026-29775)
 - Add DSP format checks (CVE-2026-31884)
 - Fix DSP array bounds checks (CVE-2026-31883)
 - Fix DSP array bounds checks (CVE-2026-31885)
 - Update CLEAR_GLYPH_ENTRY::count after alloc (CVE-2026-33985) Resolves: RHEL-159816, RHEL-155478, RHEL-161047, RHEL-161482 Resolves: RHEL-161519, RHEL-161085, RHEL-168463
 - Update CLEAR_VBAR_ENTRY size after alloc (CVE-2026-33984)

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-2026-19349.html

Plugin Details

Severity: High

ID: 323105

File Name: oraclelinux_ELSA-2026-19349.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/26/2026

Updated: 6/26/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-33984

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:libwinpr-devel, p-cpe:/a:oracle:linux:freerdp, p-cpe:/a:oracle:linux:libwinpr, p-cpe:/a:oracle:linux:freerdp-libs, p-cpe:/a:oracle:linux:freerdp-devel, 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: 6/26/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-33983, CVE-2026-33984

IAVA: 2026-A-0286-S