Vulnerability identifier: #VU80345

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-40589

CWE-ID: CWE-119

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 attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in ncrush_decompress. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.

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-gc34-mw6m-g42x
http://github.com/FreeRDP/FreeRDP/commit/16141a30f983dd6f7a6e5b0356084171942c9416

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.