WebKitGTK and WPE WebKit Security Advisory WSA-2023-0011

• Date Reported: December 05, 2023

• Advisory ID: WSA-2023-0011

• CVE identifiers: CVE-2023-42916, CVE-2023-42917.

Several vulnerabilities were discovered in WebKitGTK and WPE WebKit.

• CVE-2023-42916
  • Versions affected: WebKitGTK and WPE WebKit before 2.42.3.
  • Credit to Clément Lecigne of Google’s Threat Analysis Group.
  • Impact: Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been actively exploited. Description: An out-of-bounds read was addressed with improved input validation.
  • WebKit Bugzilla: 265041
• CVE-2023-42917
  • Versions affected: WebKitGTK and WPE WebKit before 2.42.3.
  • Credit to Clément Lecigne of Google’s Threat Analysis Group.
  • Impact: Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited. Description: A memory corruption vulnerability was addressed with improved locking.
  • WebKit Bugzilla: 265067

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/.