CVE & CISA-KEV Catalog

CVE-2018-8787

CRITICALEPSS 94th pctl
9.8
CVSS v3
NVD

Description

FreeRDP prior to version 2.0.0-rc4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function gdi_Bitmap_Decompress() and results in a memory corruption and probably even a remote code execution.

How to fix

Remediation Available
freerdp2Debian
Fixed in:2.0.0~git20181120.1.e21b72c95+dfsg1-1CVE-2018-8787
Fixed in:2.0.0~git20181120.1.e21b72c95+dfsg1-1CVE-2018-8787
freerdpUbuntu
Fixed in:1.0.2-2ubuntu1.2USN-3845-1
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3USN-3845-1
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1USN-3845-2
freerdp2Ubuntu
Fixed in:2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1USN-3845-1
libfreerdp-client1.1Ubuntu
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3USN-3845-1
Fixed in:1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1USN-3845-2
libfreerdp-client2-2Ubuntu
Fixed in:2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1USN-3845-1
libfreerdp1Ubuntu
Fixed in:1.0.2-2ubuntu1.2USN-3845-1
libfreerdp2-2Ubuntu
Fixed in:2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1USN-3845-1

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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 RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

8.36%probability of exploitation in 30 days
94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Related Vulnerabilities

Other CWE-680 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-24834High7.041%-Fix
CVE-2021-32761High7.531%-Fix
CVE-2020-6116High7.828%--
CVE-2021-40417Critical9.816%--
CVE-2021-32628High7.514%-Fix
CVE-2021-30354High8.68.4%--

Common questions

How do I fix CVE-2018-8787?

Published advisories record a fix for 7 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2018-8787 being actively exploited?

Not that we know of. CVE-2018-8787 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 8.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 94% of all scored CVEs.

How severe is CVE-2018-8787?

CVE-2018-8787 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2018-8787 affect?

Published advisories record a fix for freerdp2 (Debian), freerdp (Ubuntu), freerdp2 (Ubuntu), libfreerdp-client1.1 (Ubuntu), and 3 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.