SUSE update for xrdp

1) Out-of-bounds read

EUVDB-ID: #VU81308

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-42822

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in xrdp_painter.c when accessing the font glyphs. A remote user can trigger an out-of-bounds read error and read contents of memory on the system.

Successful exploitation of the vulnerability may lead to system compromise.

Mitigation

Update the affected package xrdp to the latest version.

Vulnerable software versions

Basesystem Module: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5

SUSE Linux Enterprise Server 15: SP4 - SP5

SUSE Linux Enterprise Real Time 15: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

openSUSE Leap: 15.4 - 15.5

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

librfxencode0: before 0.9.13.1-150200.4.27.1

xrdp: before 0.9.13.1-150200.4.27.1

xrdp-debugsource: before 0.9.13.1-150200.4.27.1

librfxencode0-debuginfo: before 0.9.13.1-150200.4.27.1

libpainter0-debuginfo: before 0.9.13.1-150200.4.27.1

xrdp-devel: before 0.9.13.1-150200.4.27.1

xrdp-debuginfo: before 0.9.13.1-150200.4.27.1

libpainter0: before 0.9.13.1-150200.4.27.1

CPE2.3

• cpe:2.3:o:suse:basesystem_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:a:suse:librfxencode0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xrdp:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xrdp-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:librfxencode0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libpainter0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xrdp-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xrdp-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libpainter0:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234577-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.