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    CVE-2019-17624

    "" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap. For example, by sending ct.c_char 1000 times, an attacker can cause a denial of service (application crash) or possibly have unspecified other impact. Note: It is disputed if the X.Org X Server is involved or if there is a stack overflow.

    Published:Oct 16, 2019
    Last Modified:Nov 21, 2024
    EPS:Oct 16, 2019
    EPSS Score:0.16233
    CVSS Score:7.8

    Affected Products

    Vendor
    X.org
    Product
    X Server

    Exploits

    https://www.exploit-db.com/exploits/47507https://www.exploit-db.com/exploits/47507https://www.exploit-db.com/exploits/47507

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-50263 (CVSS 5.5) — A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigge…
    CVE-2026-50259 (CVSS 7.8) — A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a…
    CVE-2026-50257 (CVSS 7.8) — A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets…
    CVE-2026-50264 (CVSS 7.8) — An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFor…
    CVE-2026-50260 (CVSS 7.8) — A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter(). A client that sets up mul…
    CVE-2026-50261 (CVSS 7.8) — A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client that sets …
    CVE-2026-50258 (CVSS 7.8) — A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple sta…
    CVE-2026-50256 (CVSS 7.8) — A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X serv…
    CVE-2026-50262 (CVSS 5.5) — An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(…
    CVE-2026-34002 (CVSS 6.1) — A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard…

    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