CVE-2023-40576

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    CVE-2023-40576

    Published: 31 Aug 2023Last Modified: 12 Aug 2026

    Summary: Out-Of-Bounds Read in FreeRDP

    Details: 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 `RleDecompress` function. This Out-Of-Bounds Read occurs because FreeRDP processes the `pbSrcBuffer` variable without checking if it contains data of sufficient length. Insufficient data in the `pbSrcBuffer` variable may cause errors or crashes. This issue has been addressed in version 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this issue.

    References: https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/include/bitmap.c#L94-L113, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40576.json, https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x3x5-r7jm-5pq2, https://nvd.nist.gov/vuln/detail/CVE-2023-40576, https://security.gentoo.org/glsa/202401-16

    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-2023-40576 | CVE-DB