// For flags

CVE-2023-39353

Missing offset validation leading to Out Of Bound Read in FreeRDP

Severity Score

9.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result crafted input can lead to an out of bounds read access which in turn will cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

FreeRDP es una implementación gratuita del Protocolo de escritorio remoto (RDP) , publicada bajo la licencia Apache. Las versiones afectadas están sujetas a una validación de compensación faltante que conduce a una lectura fuera de límites. En el archivo `libfreerdp/codec/rfx.c` no hay validación de compensación en `tile->quantIdxY`, `tile->quantIdxCb` y `tile->quantIdxCr`. Como resultado, una entrada manipulada puede dar lugar a un acceso de lectura fuera de límites, lo que a su vez provocará un bloqueo. Este problema se solucionó en las versiones 2.11.0 y 3.0.0-beta3. Se recomienda a los usuarios que actualicen. No se conocen soluciones para esta vulnerabilidad.

A flaw was found in FreeRDP. In the `libfreerdp/codec/rfx.c` file, there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result, crafted input can lead to an out-of-bounds read, which may result in a crash.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-07-28 CVE Reserved
  • 2023-08-31 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-08-02 First Exploit
  • 2024-09-06 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Freerdp
Search vendor "Freerdp"
 Freerdp
Search vendor "Freerdp" for product "Freerdp"
 < 2.11.0
Search vendor "Freerdp" for product "Freerdp" and version " < 2.11.0"
-
Affected
Freerdp
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 Freerdp
Search vendor "Freerdp" for product "Freerdp"
 3.0.0
Search vendor "Freerdp" for product "Freerdp" and version "3.0.0"
beta1
Affected
Freerdp
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 Freerdp
Search vendor "Freerdp" for product "Freerdp"
 3.0.0
Search vendor "Freerdp" for product "Freerdp" and version "3.0.0"
beta2
Affected
Debian
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 Debian Linux
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 10.0
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-
Affected
Fedoraproject
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 Fedora
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 37
Search vendor "Fedoraproject" for product "Fedora" and version "37"
-
Affected
Fedoraproject
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 Fedora
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 38
Search vendor "Fedoraproject" for product "Fedora" and version "38"
-
Affected
Fedoraproject
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 Fedora
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 39
Search vendor "Fedoraproject" for product "Fedora" and version "39"
-
Affected