openSUSE 16 Security Update : freerdp2 (openSUSE-SU-2026:20632-1)

critical Nessus Plugin ID 311767

Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20632-1 advisory.

Changes in freerdp2:

- Update freerdp-3-macro:
- Add WINPR_ATTR_MALLOC macro from freerdp 3

- Security fixes for the following issues:
* CVE-2026-25941: Fixed a out of bounds read (bsc#1258919)
* CVE-2026-25942: Fixed a buffer overflow in xf_rail_server_execute_result() (bsc#1258920)
* CVE-2026-27951: Fixed a denial of service in Stream_EnsureCapacity() (bsc#1258939)
* CVE-2026-25997: Fixed a use-after-free in xf_clipboard_format_equal() (bsc#1258977)
* CVE-2026-26986: Fixed a use-after-free in rail_window_free() (bsc#1258967)
* CVE-2026-27015: Fixed a client denial of service via reachable assert (bsc#1258987)
* CVE-2026-25952: Fixed a use-after-free in xf_SetWindowMinMaxInfo() (bsc#1258921)
* CVE-2026-25953: Fixed a use-after-free in xf_AppUpdateWindowFromSurface() (bsc#1258923)
* CVE-2026-25954: Fixed a use-after-free in xf_rail_server_local_move_size() (bsc#1258924)
* CVE-2026-24684: Fixed a use-after-free in play_thread() (bsc#1257991).
* CVE-2026-26271: Fixed a buffer overread in icon processing (bsc#1258979)
* CVE-2026-26955: Fixed a out of bounds write (bsc#1258982)
* CVE-2026-26965: Fixed a out of bounds write (bsc#1258985)
* CVE-2026-31806: Fixed a buffer overflow via improper validation of server messages (bsc#1259653)
* CVE-2026-31883: Fixed a buffer overflow via crafted audio format and wave data (bsc#1259679)
* CVE-2026-31885: Fixed a out of bounds read (bsc#1259686)
* CVE-2026-24491: Fix use-after-free that was accidentally introduced in the backport (bsc#1257981)
* CVE-2026-22855: Fixed a buffer overflow in smartcard_unpack_set_attrib_call() (bsc#1256721)
* CVE-2026-22857: Fixed a use-after-free in irp_thread_func() (bsc#1256723)
* CVE-2026-23533: Fixed a buffer overflow in clear_decompress_residual_data() (bsc#1256943)
* CVE-2026-23732: Fixed a buffer overflow in Glyph_Alloc() (bsc#1256945)
* CVE-2026-23883: Fixed a use-after-free (bsc#1256946)
* CVE-2026-23884: Fixed a use-after-free in gdi_set_bounds (bsc#1256947)

Tenable has extracted the preceding description block directly from the SUSE 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.

Plugin Details

Severity: Critical

ID: 311767

File Name: openSUSE-2026-20632-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 5/2/2026

Updated: 5/2/2026

Supported Sensors: Continuous Assessment, Nessus Agent, 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-2026-31883

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-31806

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:freerdp2-server, p-cpe:/a:novell:opensuse:freerdp2-devel, p-cpe:/a:novell:opensuse:freerdp2, p-cpe:/a:novell:opensuse:libfreerdp2-2, p-cpe:/a:novell:opensuse:winpr2-devel, p-cpe:/a:novell:opensuse:freerdp2-proxy, p-cpe:/a:novell:opensuse:libwinpr2-2

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/27/2026

Vulnerability Publication Date: 1/14/2026

Reference Information

CVE: CVE-2026-22855, CVE-2026-22857, CVE-2026-23533, CVE-2026-23732, CVE-2026-23883, CVE-2026-23884, CVE-2026-24491, CVE-2026-24684, CVE-2026-25941, CVE-2026-25942, CVE-2026-25952, CVE-2026-25953, CVE-2026-25954, CVE-2026-25997, CVE-2026-26271, CVE-2026-26955, CVE-2026-26965, CVE-2026-26986, CVE-2026-27015, CVE-2026-27951, CVE-2026-31806, CVE-2026-31883, CVE-2026-31885

IAVA: 2026-A-0099-S, 2026-A-0257-S, 2026-A-0286

Detections

Analytics

openSUSE 16 Security Update : freerdp2 (openSUSE-SU-2026:20632-1)

critical Nessus Plugin ID 311767

Synopsis

Description

Solution

See Also

Plugin Details

Risk Information

VPR

CVSS v2

CVSS v3

CVSS v4

Vulnerability Information

Reference Information