FreeRDP up to 2.10.x/3.0.0-beta2 gdi_CreateSurface out-of-bounds write
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.8 | $0-$5k | 0.00 |
Summary
A vulnerability categorized as critical has been discovered in FreeRDP up to 2.10.x/3.0.0-beta2. Affected is the function gdi_CreateSurface. The manipulation results in out-of-bounds write.
This vulnerability is reported as CVE-2023-40186. The attack can be launched remotely. No exploit exists.
It is advisable to upgrade the affected component.
Details
A vulnerability, which was classified as critical, was found in FreeRDP up to 2.10.x/3.0.0-beta2. Affected is the function gdi_CreateSurface. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an IntegerOverflow leading to Out-Of-Bound Write Vulnerability in the `gdi_CreateSurface` function. This issue affects FreeRDP based clients only. FreeRDP proxies are not affected as image decoding is not done by a proxy. 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 issue.
The weakness was disclosed 09/01/2023 as GHSA-hcj4-3c3r-5j3v. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-40186 since 08/09/2023. There are known technical details, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 216351 (Debian dla-4053 : freerdp2-dev - security update), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 2.11.0 or 3.0.0-beta3 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (216351). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Type
Name
Version
License
Website
- Product: https://github.com/FreeRDP/FreeRDP/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.9VulDB Meta Temp Score: 7.8
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CNA Base Score: 6.5
CNA Vector (GitHub, Inc.): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Out-of-bounds writeCWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 216351
Nessus Name: Debian dla-4053 : freerdp2-dev - security update
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: FreeRDP 2.11.0/3.0.0-beta3
Timeline
08/09/2023 🔍09/01/2023 🔍
09/01/2023 🔍
02/16/2025 🔍
Sources
Product: github.comAdvisory: GHSA-hcj4-3c3r-5j3v
Status: Confirmed
CVE: CVE-2023-40186 (🔍)
GCVE (CVE): GCVE-0-2023-40186
GCVE (VulDB): GCVE-100-238512
Entry
Created: 09/01/2023 07:36Updated: 02/16/2025 00:51
Changes: 09/01/2023 07:36 (50), 09/29/2023 07:12 (11), 02/16/2025 00:51 (18)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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