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Vulnerability Details : CVE-2021-41160

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a malicious server might trigger out of bound writes in a connected client. Connections using GDI or SurfaceCommands to send graphics updates to the client might send `0` width/height or out of bound rectangles to trigger out of bound writes. With `0` width or heigth the memory allocation will be `0` but the missing bounds checks allow writing to the pointer at this (not allocated) region. This issue has been patched in FreeRDP 2.4.1.
Publish Date : 2021-10-21 Last Update Date : 2021-11-29
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
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 Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 787

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:4619: freerdp security update (Important) oval:com.redhat.rhsa:def:20214619 unix
RHSA-2021:4622: freerdp security update (Important) oval:com.redhat.rhsa:def:20214622 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-2021-41160

# Product Type Vendor Product Version Update Edition Language
1 OS Fedoraproject Fedora 33 * * * Version Details Vulnerabilities
2 OS Fedoraproject Fedora 34 * * * Version Details Vulnerabilities
3 OS Fedoraproject Fedora 35 * * * Version Details Vulnerabilities
4 Application Freerdp Freerdp * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Fedoraproject Fedora 3
Freerdp Freerdp 1

- References For CVE-2021-41160

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXCR73EDVPLI6TRWRAWJCJ7OBYDKBB74/
FEDORA FEDORA-2021-5d227916bc
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WIZUPVRGCWUDAPDOQVUGUIYUO7UWKMXX/
FEDORA FEDORA-2021-ac23d9e47f
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7c9r-6r2q-93qg CONFIRM
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DWJXQOWKNR7O5HM2HFJOM4GBUFPTE3RG/
FEDORA FEDORA-2021-2c25f03d0b

- Metasploit Modules Related To CVE-2021-41160

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


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