CVE & CISA-KEV Catalog

CVE-2020-11042

MEDIUMEPSS 75th pctl
5.5
CVSS v3
NVD

Description

In FreeRDP greater than 1.1 and before 2.0.0, there is an out-of-bounds read in update_read_icon_info. It allows reading a attacker-defined amount of client memory (32bit unsigned -> 4GB) to an intermediate buffer. This can be used to crash the client or store information for later retrieval. This has been patched in 2.0.0.

How to fix

Remediation Available
freerdp2Debian
Fixed in:2.1.1+dfsg1-1CVE-2020-11042
Fixed in:2.1.1+dfsg1-1CVE-2020-11042
freerdpUbuntu
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4USN-4382-1
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2USN-4382-2
freerdp2Ubuntu
Fixed in:2.1.1+dfsg1-0ubuntu0.18.04.1USN-4379-1
Fixed in:2.1.1+dfsg1-0ubuntu0.20.04.1USN-4379-1
libfreerdp-client1.1Ubuntu
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4USN-4382-1
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2USN-4382-2
libfreerdp-client2-2Ubuntu
Fixed in:2.1.1+dfsg1-0ubuntu0.18.04.1USN-4379-1
Fixed in:2.1.1+dfsg1-0ubuntu0.20.04.1USN-4379-1
libfreerdp-common1.1.0Ubuntu
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4USN-4382-1
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2USN-4382-2
libfreerdp-core1.1Ubuntu
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4USN-4382-1
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2USN-4382-2
libfreerdp-server2-2Ubuntu
Fixed in:2.1.1+dfsg1-0ubuntu0.18.04.1USN-4379-1
Fixed in:2.1.1+dfsg1-0ubuntu0.20.04.1USN-4379-1
libfreerdp2-2Ubuntu
Fixed in:2.1.1+dfsg1-0ubuntu0.18.04.1USN-4379-1
Fixed in:2.1.1+dfsg1-0ubuntu0.20.04.1USN-4379-1

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 ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeChanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityLow

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

Exploit Intelligence

1.77%probability of exploitation in 30 days
75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0160High7.5100%KEVFix
CVE-2025-5777High7.5100%KEV + RansomFix
CVE-2021-4034High7.895%KEVFix
CVE-2023-21769High7.592%-Fix
CVE-2023-49285High8.689%-Fix
CVE-2020-8794Critical9.889%-Fix
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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.