Out-of-Bounds Affecting webkit2gtk package, versions <2.24.1-0ubuntu0.18.04.1
Threat Intelligence
Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-WEBKIT2GTK-340189
- published24 Feb 2019
- disclosed24 Feb 2019
Introduced: 24 Feb 2019
CVE-2019-8375 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 webkit2gtk to version 2.24.1-0ubuntu0.18.04.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream webkit2gtk package and not the webkit2gtk package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
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).
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-8375
- https://security-tracker.debian.org/tracker/CVE-2019-8375
- https://www.exploit-db.com/exploits/46465/
- https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531
- https://bugs.webkit.org/show_bug.cgi?id=184875
- https://trac.webkit.org/changeset/241515/webkit
- 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://usn.ubuntu.com/3948-1/
- https://www.exploit-db.com/exploits/46465