CVE-2023-40186

IntegerOverflow leading to Out-Of-Bound Write Vulnerability in FreeRDP

CVSS 6.5 MEDIUMEPSS 1.1%CWE-190 CWE-787

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 1.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

31 Aug 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected products

FreeRDP · FreeRDP

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://github.com/FreeRDP/FreeRDP/blob/fee2b10ba1154f952769a53eb608f044782e22f8/libfreerdp/gdi/gfx.c#L1156-L1165 https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hcj4-3c3r-5j3v https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html https://lists.debian.org/debian-lts-announce/2025/02/msg00016.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6LLDAPEXRDJOM3PREDDD267SSNT77DP/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHMTGKCZXJPQOR5ZD2I4GPDNP2DKRXMF/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OH2ATH2BKDNKCJAU4WPPXK4SHLE3UJUV/https://security.gentoo.org/glsa/202401-16