WebKitGTK+ and WPE WebKit Security Advisory WSA-2019-0001

• Date Reported: February 08, 2019

• Advisory ID: WSA-2019-0001

• CVE identifiers: CVE-2019-6212, CVE-2019-6215, CVE-2019-6216, CVE-2019-6217, CVE-2019-6226, CVE-2019-6227, CVE-2019-6229, CVE-2019-6233, CVE-2019-6234.

Several vulnerabilities were discovered in WebKitGTK+ and WPE WebKit.

• CVE-2019-6212

  • Versions affected: WebKitGTK+ before 2.22.6 and WPE WebKit before 2.22.4.
  • Credit to an anonymous researcher.
  • Processing maliciously crafted web content may lead to arbitrary code execution. Multiple memory corruption issues were addressed with improved memory handling.

• CVE-2019-6215

  • Versions affected: WebKitGTK+ before 2.22.6 and WPE WebKit before 2.22.4.
  • Credit to Lokihardt of Google Project Zero.
  • Processing maliciously crafted web content may lead to arbitrary code execution. A type confusion issue was addressed with improved memory handling.

• CVE-2019-6216

  • Versions affected: WebKitGTK+ before 2.22.5 and WPE WebKit before 2.22.3.
  • Credit to Fluoroacetate working with Trend Micro’s Zero Day Initiative.
  • Processing maliciously crafted web content may lead to arbitrary code execution. Multiple memory corruption issues were addressed with improved memory handling.

• CVE-2019-6217

  • Versions affected: WebKitGTK+ before 2.22.5 and WPE WebKit before 2.22.3.
  • Credit to Fluoroacetate working with Trend Micro’s Zero Day Initiative, Proteas, Shrek_wzw, and Zhuo Liang of Qihoo 360 Nirvan Team.
  • Processing maliciously crafted web content may lead to arbitrary code execution. Multiple memory corruption issues were addressed with improved memory handling.

• CVE-2019-6226

  • Versions affected: WebKitGTK+ and WPE WebKit before 2.22.0.
  • Credit to Apple.
  • Processing maliciously crafted web content may lead to arbitrary code execution. Multiple memory corruption issues were addressed with improved memory handling.

• CVE-2019-6227

  • Versions affected: WebKitGTK+ before 2.22.5 and WPE WebKit before 2.22.3.
  • Credit to Qixun Zhao of Qihoo 360 Vulcan Team.
  • Processing maliciously crafted web content may lead to arbitrary code execution. A memory corruption issue was addressed with improved memory handling.

• CVE-2019-6229

  • Versions affected: WebKitGTK+ before 2.22.5 and WPE WebKit before 2.22.3.
  • Credit to Ryan Pickren.
  • Processing maliciously crafted web content may lead to universal cross site scripting. A logic issue was addressed with improved validation.

• CVE-2019-6233

  • Versions affected: WebKitGTK+ before 2.22.4 and WPE WebKit before 2.22.2.
  • Credit to G. Geshev from MWR Labs working with Trend Micro’s Zero Day Initiative.
  • Processing maliciously crafted web content may lead to arbitrary code execution. A memory corruption issue was addressed with improved memory handling.

• CVE-2019-6234

  • Versions affected: WebKitGTK+ before 2.22.4 and WPE WebKit before 2.22.2.
  • Credit to G. Geshev from MWR Labs working with Trend Micro’s Zero Day Initiative.
  • Processing maliciously crafted web content may lead to arbitrary code execution. A memory corruption issue was addressed with improved memory handling.

We recommend updating to the latest stable versions of WebKitGTK+ and WPE WebKit. It is the best way to ensure that you are running safe versions of WebKit. Please check our websites for information about the latest stable releases.

Further information about WebKitGTK+ and WPE WebKit security advisories can be found at: https://webkitgtk.org/security.html or https://wpewebkit.org/security/.