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    CVE-2019-8375

    The UIProcess subsystem in WebKit, as used in WebKitGTK through 2.23.90 and WebKitGTK+ through 2.22.6 and other products, does not prevent the script dialog size from exceeding the web view size, which allows remote attackers to cause a denial of service (Buffer Overflow) or possibly have unspecified other impact, related to UIProcess/API/gtk/WebKitScriptDialogGtk.cpp, UIProcess/API/gtk/WebKitScriptDialogImpl.cpp, and UIProcess/API/gtk/WebKitWebViewGtk.cpp, as demonstrated by GNOME Web (aka Epiphany).

    Published:Feb 24, 2019
    Last Modified:Nov 21, 2024
    EPS:Feb 24, 2019
    EPSS Score:0.19172
    CVSS Score:9.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Webkitgtk
    Product
    Webkitgtk
    Vendor
    Webkitgtk
    Product
    Webkitgtk\+

    Exploits

    https://www.exploit-db.com/exploits/46465/https://www.inputzero.io/2019/02/fuzzing-webkit.htmlhttps://www.exploit-db.com/exploits/46465/https://www.inputzero.io/2019/02/fuzzing-webkit.htmlhttps://www.exploit-db.com/exploits/46465

    Related CVEs

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    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html
    http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html
    https://bugs.webkit.org/show_bug.cgi?id=184875
    https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531
    https://trac.webkit.org/changeset/241515/webkit
    https://usn.ubuntu.com/3948-1/
    https://www.exploit-db.com/exploits/46465/
    https://www.inputzero.io/2019/02/fuzzing-webkit.html
    http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html
    http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html
    https://bugs.webkit.org/show_bug.cgi?id=184875
    https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531
    https://trac.webkit.org/changeset/241515/webkit
    https://usn.ubuntu.com/3948-1/
    https://www.exploit-db.com/exploits/46465/
    https://www.inputzero.io/2019/02/fuzzing-webkit.html

    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