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openSUSE Leap 15.4 freerdp Important Heap Buffer Overflow Vuln 2026-0656-1

opensuse
Calendar Grey February 26, 2026
Dist Opensuse Esm H88
An openSUSE update for freerdp solves six important vulnerabilities, ensuring system stability and security.
An update that solves six vulnerabilities can now be installed.

Description

This update for freerdp fixes the following issues:

* CVE-2026-22855: heap-buffer-overflow in smartcard_unpack_set_attrib_call

(bsc#1256721).

* CVE-2026-22857: heap-use-after-free in irp_thread_func (bsc#1256723).

* CVE-2026-23533: improper validation can lead to heap buffer overflow in

`clear_decompress_residual_data` (bsc#1256943).

* CVE-2026-23732: improper validation can lead to heap buffer overflow in

`Glyph_Alloc` (bsc#1256945).

* CVE-2026-23883: use-after-free when `update_pointer_color` and

`freerdp_image_copy_from_pointer_data` fail (bsc#1256946).

* CVE-2026-23884: use-after-free in `gdi_set_bounds` (bsc#1256947).

Topics%20covered

Topics Covered

security advisory important OpenSUSE heap buffer overflow use-after-free freerdp

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-656=1

* SUSE Package Hub 15 15-SP7

zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-656=1

Package List

* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)

* winpr2-devel-2.4.0-150400.3.41.1

* freerdp-server-debuginfo-2.4.0-150400.3.41.1

* libuwac0-0-2.4.0-150400.3.41.1

* freerdp-debugsource-2.4.0-150400.3.41.1

* libwinpr2-2.4.0-150400.3.41.1

* freerdp-proxy-2.4.0-150400.3.41.1

* libfreerdp2-2.4.0-150400.3.41.1

* libwinpr2-debuginfo-2.4.0-150400.3.41.1

* freerdp-devel-2.4.0-150400.3.41.1

* libuwac0-0-debuginfo-2.4.0-150400.3.41.1

* freerdp-server-2.4.0-150400.3.41.1

* freerdp-2.4.0-150400.3.41.1

* freerdp-debuginfo-2.4.0-150400.3.41.1

* freerdp-wayland-debuginfo-2.4.0-150400.3.41.1

* freerdp-wayland-2.4.0-150400.3.41.1

* uwac0-0-devel-2.4.0-150400.3.41.1

* freerdp-proxy-debuginfo-2.4.0-150400.3.41.1

* libfreerdp2-debuginfo-2.4.0-150400.3.41.1

* SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x)

* libwinpr2-2.4.0-150400.3.41.1

* freerdp-debugsource-2.4.0-150400.3.41.1

* libfreerdp2-2.4.0-150400.3.41.1

* libwinpr2-debuginfo-2.4.0-150400.3.41.1

* freerdp-debuginfo-2.4.0-150400.3.41.1

*...

Read the Full Advisory

References

* bsc#1256721

* bsc#1256723

* bsc#1256943

* bsc#1256945

* bsc#1256946

* bsc#1256947

## References:

* https://www.suse.com/security/cve/CVE-2026-22855.html

* https://www.suse.com/security/cve/CVE-2026-22857.html

* https://www.suse.com/security/cve/CVE-2026-23533.html

* https://www.suse.com/security/cve/CVE-2026-23732.html

* https://www.suse.com/security/cve/CVE-2026-23883.html

* https://www.suse.com/security/cve/CVE-2026-23884.html

* https://bugzilla.suse.com/show_bug.cgi?id=1256721

* https://bugzilla.suse.com/show_bug.cgi?id=1256723

* https://bugzilla.suse.com/show_bug.cgi?id=1256943

* https://bugzilla.suse.com/show_bug.cgi?id=1256945

* https://bugzilla.suse.com/show_bug.cgi?id=1256946

* https://bugzilla.suse.com/show_bug.cgi?id=1256947

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0656-1
Release Date: 2026-02-26T15:06:37Z
Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP7 * SUSE Package Hub 15 15-SP7

Topics%20covered

Topics Covered

security advisory important OpenSUSE heap buffer overflow use-after-free freerdp

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