CVE-2023-39355

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    CVE-2023-39355

    Published: 31 Aug 2023Last Modified: 12 Aug 2026

    Summary: FreeRDP Use-After-Free in RDPGFX_CMDID_RESETGRAPHICS

    Details: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Versions of FreeRDP on the 3.x release branch before beta3 are subject to a Use-After-Free in processing `RDPGFX_CMDID_RESETGRAPHICS` packets. If `context->maxPlaneSize` is 0, `context->planesBuffer` will be freed. However, without updating `context->planesBuffer`, this leads to a Use-After-Free exploit vector. In most environments this should only result in a crash. This issue has been addressed in version 3.0.0-beta3 and users of the beta 3.x releases are advised to upgrade. There are no known workarounds for this vulnerability.

    References: https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39355.json, https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hvwj-vmg6-2f5h, https://nvd.nist.gov/vuln/detail/CVE-2023-39355, https://security.gentoo.org/glsa/202401-16, https://github.com/FreeRDP/FreeRDP/commit/d6f9d33a7db0b346195b6a15b5b99944ba41beee

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- f468a06d88c55b9ed484757326a9528cf27d33f4
    Fixed -59a5726ab36338776539192cae2563951d0ce94b

    Affected versions

    3.0.0-beta1
    3.0.0-beta2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-39355 | CVE-DB