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VULNERABILITIES

CVE-2023-39356 Details

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a missing offset validation may lead to an Out Of Bound Read in the function `gdi_multi_opaque_rect`. In particular there is no code to validate if the value `multi_opaque_rect->numRectangles` is less than 45. Looping through `multi_opaque_rect->`numRectangles without proper boundary checks can lead to Out-of-Bounds Read errors which will likely lead to 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.

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References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/include/freerdp/primary.h#L186-L196 CVEIssue Tracking
https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/core/orders.c#L1503-L1504 CVEIssue Tracking
https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/gdi/gdi.c#L723C1-L758 CVEIssue Tracking
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q5v5-qhj5-mh6m CVEExploitVendor Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html CVEMailing ListThird Party Advisory

see all 19 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-125Out-of-bounds Read[email protected]
CWE-125Out-of-bounds Read[email protected]

Affected Products

ProductVersions
freerdp freerdp
< 2.11.0
3.0.0 beta1
3.0.0 beta2

CPE

  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
  • cpe:2.3:a:freerdp:freerdp:3.0.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:freerdp:freerdp:3.0.0:beta2:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
10.0

CPE

  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
37
38
39

CPE

  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

13 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2023-39356
NVD Published Date:
Aug 31, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2023-39356 Details - Not Deferred