WebKitGTK and WPE WebKit Security Advisory WSA-2021-0005

• Date Reported: September 20, 2021

• Advisory ID: WSA-2021-0005

• CVE identifiers: CVE-2021-30858.

Several vulnerabilities were discovered in WebKitGTK and WPE WebKit.

• CVE-2021-30858
  • Versions affected: WebKitGTK and WPE WebKit before 2.32.4.
  • Credit to an anonymous researcher.
  • Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited. Description: A use after free issue was addressed with improved memory management.

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/.