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Vulnerability · Published Jul 27, 2020 · Assigned by GitHub_M

CVE-2020-15103Integer Overflow in FreeRDP

Low 3.5

In plain English

A low-severity security flaw in FreeRDP from FreeRDP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.5Low
Exploit odds (30 days)1.5%top 26.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In FreeRDP less than or equal to 2.1.2, an integer overflow exists due to missing input sanitation in rdpegfx channel. All FreeRDP clients are affected. The input rectangles from the server are not checked against local surface coordinates and blindly accepted. A malicious server can send data that will crash the client later on (invalid length arguments to a `memcpy`) This has been fixed in 2.2.0. As a workaround, stop using command line arguments /gfx, /gfx-h264 and /network:auto

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8freerdp-devel2:2.2.0-1.el8ALSA-2021:1849
Alpine:v3.20freerdp2.2.0-r0ALPINE-CVE-2020-15103
Alpine:v3.21freerdp2.2.0-r0ALPINE-CVE-2020-15103
Alpine:v3.22freerdp2.2.0-r0ALPINE-CVE-2020-15103
Alpine:v3.23freerdp2.2.0-r0ALPINE-CVE-2020-15103
Alpine:v3.24freerdp2.2.0-r0ALPINE-CVE-2020-15103
Alpine:v3.22freerdp22.2.0-r0ALPINE-CVE-2020-15103
Alpine:v3.23freerdp22.2.0-r0ALPINE-CVE-2020-15103
Alpine:v3.24freerdp22.2.0-r0ALPINE-CVE-2020-15103
Debian:12freerdp22.2.0+dfsg1-1DEBIAN-CVE-2020-15103
Rocky Linux:8freerdp2:2.2.0-1.el8RLSA-2021:1849
Rocky Linux:8freerdp2:2.2.0-10.el8RLSA-2021:1849

Affected products (as reported)

VendorProductVersions
FreeRDP FreeRDP <= 2.1.2

Weakness: CWE-680 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

References