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CVE-2019-8375

Date: February 24, 2019

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).

Language: C

Severity Score

Related Resources (12)

https://usn.ubuntu.com/3948-1/
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html
https://bugs.webkit.org/show_bug.cgi?id=184875
https://trac.webkit.org/changeset/241515/webkit
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-8375
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html
https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531
https://www.inputzero.io/2019/02/fuzzing-webkit.html
https://www.exploit-db.com/exploits/46465/
https://security-tracker.debian.org/tracker/CVE-2019-8375
https://nvd.nist.gov/vuln/detail/CVE-2019-8375
https://www.mend.io/vulnerability-database/CVE-2019-8375

Severity Score

Weakness Type (CWE)

Buffer Errors

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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