Vulnerability identifier: #VU37165

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-2836

CWE-ID: CWE-295

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FreeRDP
Universal components / Libraries / Libraries used by multiple products
Debian Linux
Operating systems & Components / Operating system

Vendor: FreeRDP
Debian

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

An exploitable denial of service vulnerability exists within the reading of proprietary server certificates in FreeRDP 2.0.0-beta1+android11. A specially crafted challenge packet can cause the program termination leading to a denial of service condition. An attacker can compromise the server or use man in the middle to trigger this vulnerability.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FreeRDP: 2.0.0

Debian Linux: 2.0.0 - 9.0

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External links
http://www.securityfocus.com/bid/99942
http://www.debian.org/security/2017/dsa-3923
http://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0338

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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.