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Vulnerability Details : CVE-2020-15103

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
Publish Date : 2020-07-27 Last Update Date : 2020-12-23
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- CVSS Scores & Vulnerability Types

CVSS Score
3.5
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication ???
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 680

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:1849: freerdp security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20211849 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2020-15103

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 20.04 * * * Version Details Vulnerabilities
3 OS Fedoraproject Fedora 31 * * * Version Details Vulnerabilities
4 OS Fedoraproject Fedora 32 * * * Version Details Vulnerabilities
5 Application Freerdp Freerdp * * * * Version Details Vulnerabilities
6 OS Opensuse Leap 15.1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 2
Fedoraproject Fedora 2
Freerdp Freerdp 1
Opensuse Leap 1

- References For CVE-2020-15103

https://github.com/FreeRDP/FreeRDP/pull/6382
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4r38-6hq7-j3j9 CONFIRM
https://github.com/FreeRDP/FreeRDP/blob/616af2d5b86dc24c7b3e89870dbcffd841d9a535/ChangeLog#L4
https://lists.fedoraproject.org/archives/list/[email protected]/message/6Y35HBHG2INICLSGCIKNAR7GCXEHQACQ/
FEDORA FEDORA-2020-8d5f86e29a
https://lists.fedoraproject.org/archives/list/[email protected]/message/XOZLH35OJWIQLM7FYDXAP2EAUBDXE76V/
FEDORA FEDORA-2020-a3432485db
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00010.html
SUSE openSUSE-SU-2020:1332
https://usn.ubuntu.com/4481-1/
UBUNTU USN-4481-1

- Metasploit Modules Related To CVE-2020-15103

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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