cyfenced.com →

[ CVE-2022-22620 · Published 18 Mar 2022 ]

Apple iOS, iPadOS, and macOS Webkit Use-After-Free Vulnerability

Exploited · CISA KEV CVSS 8.8 EPSS 16%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-02-11
  • EPSS: 16% chance of exploitation in the next 30 days (higher than 97% of CVEs)

[ Description ]Official description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Monterey 12.2.1, iOS 15.3.1 and iPadOS 15.3.1, Safari 15.3 (v. 16612.4.9.1.8 and 15612.4.9.1.8). 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..

CISA: Apple iOS, iPadOS, and macOS WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 25 Feb 2022): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References