CVE-2023-40188

Public Exploit
Out-Of-Bounds Read in FreeRDP

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Read in the `general_LumaToYUV444` function. This Out-Of-Bounds Read occurs because processing is done on the `in` variable without checking if it contains data of sufficient length. Insufficient data for the `in` variable may cause errors or crashes. 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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.06%
Vendor Advisory github.com
Affected: FreeRDP FreeRDP
Published at:
Updated at:

References

Link Tags
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9w28-wwj5-p4xq vendor advisory exploit
https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/nsc.c#L115-L175 issue tracking
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OH2ATH2BKDNKCJAU4WPPXK4SHLE3UJUV/ mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6LLDAPEXRDJOM3PREDDD267SSNT77DP/ mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHMTGKCZXJPQOR5ZD2I4GPDNP2DKRXMF/ mailing list
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html third party advisory mailing list
https://security.gentoo.org/glsa/202401-16

Frequently Asked Questions

What is the severity of CVE-2023-40188?
CVE-2023-40188 has been scored as a medium severity vulnerability.
How to fix CVE-2023-40188?
To fix CVE-2023-40188, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-40188 being actively exploited in the wild?
It is possible that CVE-2023-40188 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-40188?
CVE-2023-40188 affects FreeRDP FreeRDP.
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