Vulnerability identifier: #VU80397

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-39354

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FreeRDP
Universal components / Libraries / Libraries used by multiple products

Vendor: FreeRDP

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition in nsc_rle_decompress_data() function in libfreerdp/codec/nsc.c. A remote user can send specially crafted data to the application, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FreeRDP: 2.0.0 - 3.0.0 beta2

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External links
http://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c3r2-pxxp-f8r6
http://github.com/FreeRDP/FreeRDP/commit/cd1da25a87358eb3b5512fd259310e95b19a05ec

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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.