CVE & CISA-KEV Catalog

CVE-2020-15103

LOWEPSS 70th pctl
3.5
CVSS v3
NVD

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

CWE-680CWE-190Integer Overflow

How to fix

Remediation Available
freerdp2Debian
Fixed in:2.2.0+dfsg1-1CVE-2020-15103
Fixed in:2.2.0+dfsg1-1CVE-2020-15103
freerdp2Ubuntu
Fixed in:2.2.0+dfsg1-0ubuntu0.18.04.1USN-4481-1
Fixed in:2.2.0+dfsg1-0ubuntu0.20.04.1USN-4481-1
libfreerdp-client2-2Ubuntu
Fixed in:2.2.0+dfsg1-0ubuntu0.18.04.1USN-4481-1
Fixed in:2.2.0+dfsg1-0ubuntu0.20.04.1USN-4481-1
libfreerdp-server2-2Ubuntu
Fixed in:2.2.0+dfsg1-0ubuntu0.18.04.1USN-4481-1
Fixed in:2.2.0+dfsg1-0ubuntu0.20.04.1USN-4481-1
libfreerdp2-2Ubuntu
Fixed in:2.2.0+dfsg1-0ubuntu0.18.04.1USN-4481-1
Fixed in:2.2.0+dfsg1-0ubuntu0.20.04.1USN-4481-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Exploit Intelligence

1.47%probability of exploitation in 30 days
70thpercentile

Elevated risk: more likely to be exploited than 70% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.