Anolis OS update for xrdp



| Updated: 2025-03-28
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-40184
CVE-2023-42822
CWE-ID CWE-254
CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Anolis OS
Operating systems & Components / Operating system

xrdp-doc
Operating systems & Components / Operating system package or component

xrdp-selinux
Operating systems & Components / Operating system package or component

xrdp-devel
Operating systems & Components / Operating system package or component

xrdp
Operating systems & Components / Operating system package or component

Vendor OpenAnolis

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Security features bypass

EUVDB-ID: #VU80197

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-40184

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to improper handling of session restrictions inside the xrdp-sesman. A remote user can bypass session restrictions, such as max concurrent sessions per user enforced by PAM.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 23

xrdp-doc: before 0.9.23.1-1

xrdp-selinux: before 0.9.23.1-1

xrdp-devel: before 0.9.23.1-1

xrdp: before 0.9.23.1-1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2023:0991


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.

2) 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

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 23

xrdp-doc: before 0.9.23.1-1

xrdp-selinux: before 0.9.23.1-1

xrdp-devel: before 0.9.23.1-1

xrdp: before 0.9.23.1-1

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2023:0991


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.



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