#VU32882 Integer overflow in FreeRDP - CVE-2020-15103

Vulnerability identifier: #VU32882

Vulnerability risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-15103

CWE-ID: CWE-190

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 execute arbitrary code on the target system.

The vulnerability exists due to integer overflow due to missing input sanitation in rdpegfx channel. A remote attacker can trick the victim to connect to a malicious server and perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FreeRDP: 1.0 beta1 - 2.1.2

---

External links
https://github.com/FreeRDP/FreeRDP/blob/616af2d5b86dc24c7b3e89870dbcffd841d9a535/ChangeLog#L4
https://github.com/FreeRDP/FreeRDP/pull/6382
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4r38-6hq7-j3j9

---

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.